science


http://img.dailymail.co.uk/i/pix/2007/04_03/gmsoyaDM0305_468x346.jpg They’re at it again. The government is seeking a re-opening of the case for GM crops to be planted in the UK. It’s not a surprise. They’ve obviously long regretted the decision not to press ahead with genetically modified crops made in the 90s, and with good reason in some ways. It was a decision made in the middle of a nation-wide scare about them, with tabloid talk of ‘frankenstein foods’, so to have allowed them would have been political suicide.

Years later, nobody talks about ‘frankenstein foods’ any more, and it would be much easier to sneak through relaxed legislation that would allow the planting of GM crops. What bothers me about GM is not the science however, but the economics and the politics, and the way they are justified by claiming they are to benefit the developing world. Here’s environment minister Phil Woolas, speaking last week:

“There is a growing question of whether GM crops can help the developing world out of the current food-price crisis. It is a question that we as a nation need to ask ourselves”

Granted, it is a question we need to ask ourselves, and the answer is yes, they might, but there are 101 things that would help solve the current food crisis faster, more fairly, and more safely, than GM crops. The first thing we should look at is subsidies, and the fact that our over-production in the EU and the US harms agriculture elsewhere by destroying local markets with cheaper produce.

Beyond that, we can look at irrigation, using water more fairly and more efficiently. The GM industry talks about special seed that needs less water, so that dry areas can be pressed into use that wouldn’t have been productive before. Sounds great, but you could achieve the same thing by spreading methods like Mediterranean-style underground water silos, or the drip-feed irrigation techniques widely adopted in India, using hosepipes with strategically placed pinholes.

Besides irrigation, there are higher yield normal seeds that are being well used to improve harvests all round the world. These urgently need to be made available in Africa. Then there is the most basic knowledge of things like crop rotation, leaving fields fallow to replenish nutrients, nitrogen fixing plants. Teach these before you bring in corporately controlled GM seed.

Then there are fertilizers and pesticides, which are heavily used in most places in the world, but aren’t yet affordable to farmers in the poorest parts of the world. These aren’t strictly necessary on small farms, provided people understand the nitrogen fixing and rotation mentioned above, and organic agriculture could feed the world. But again, we have much simpler solutions than GM.

The whole GM solution reminds me of the urban legend of NASA’s ’space pen’, a hugely sophisticated pen that could write in zero gravity, while the Russians used a pencil.

http://images.jupiterimages.com/common/detail/87/05/23210587.jpg Some Republicans like to claim that fighting climate change will damage the developing world, because measures to reduce emissions would harm emerging economies. It makes a handy excuse to dismiss climate change. Claiming that GM crops would solve the world food crisis is exactly the same. It uses the poor as a moral argument for expanding the reach of globalized agricultural corporations. That’s what GM crops are ultimately about. Despite the propaganda, they are not being developed with the poor in mind. They’re there to protect Monsanto patented seeds, to respond better to Monsanto pesticides (and only to Monsanto pesticides). They are to make more money for rich American companies. I don’t deny that there could be some interesting developments in GM technology in pharmaceuticals or in nutrition, their primary purpose at present is control. And the last thing the world should do in the face of a food crisis, is hand more control to big corporations. On the contrary, it’s time to encourage self-sufficiency, local solutions, seasonal produce.

Simpler solutions are available to us. We don’t need GM crops any more than we need a zero gravity pen.

There has been a growing movement in the UK recently to ban or at least to tax plastic bags. But what about those that are already out there, taking up space in landfill or floating about in the Pacific Ocean?

A Canadian high school student may have worked out a solution. For his entry in a science fair (which he won, needless to say), Daniel Burd successfully identified the strain of bacteria that breaks down plastic bags. A polythene bag will degrade over 1000 years ‘in the wild’, but Burd reckons it could take as little as three months, under the right conditions of warmth, moisture, and bacterial fermentation. We may be some way from an industrial scale plastic-bag processing plant, but this breakthrough does make it possible.

You can read more about the specifics here, with thanks to Inhabitat.

//www.wiltshirebirds.co.uk/images/tspcolourringed.jpg” cannot be displayed, because it contains errors. There are a number of myths and ideas that circulate among the public with regards to conservation. Many people find it very hard to contribute or understand the point of conserving ecosystems and wildlife if humans aren’t directly affected. Others feel it can’t possibly be a priority while there are issues like hunger, AIDS, and poverty to deal with. Some even end up being against conservation, suggesting that loss of tropical forests is required in order to produce more agricultural land to feed the hungry.

So, why is conservation important? What’s the problem with disappearing Hawaiian birds or a few less species of orchid in the world? Does every species really matter?

Knowledge and lost knowledge
One of the key arguments biologists use is the sheer loss of knowledge that we’re facing. The world is just so remarkably diverse, and every species exists in its own world. We may have been working our way through the plants, fish, birds and animals, classifying them, describing them, naming them, for a couple of centuries, but we’ve barely made a dent in the what there is out there to discover. To give you an example of just how jam-packed with life the world is, to borrow from E O Wilson, go outside and scoop up a handful of soil. In your hand you will have something in the order of ten billion bacteria, and as many as six thousand different species. It will be centuries more before we have begun to understand and appreciate even that handful of soil. In fact, taking everything we know about the natural world at the moment, all the books and studies in all the world, Wilson still guesses “existing biology is under one millionth of what will eventually be known.”

A recent report showed that world wildlife numbers are down by 25% in the last 30 years. Imagine for a moment that it was books instead - that the world has lost a quarter of its books in 30 years, because of some movement of anti-intellectual, library-burning terrorists. Does the future look smarter, or dumber? Will human potential be greater, or less? Will our capacity to solve problems be better, or worse? Should we intervene to stop it? Now ask the same questions of species loss. If we carry on at the rate we’re going, we will lose countless species before we ever even get a chance to name them. We’ll never learn anything from them. We won’t even know what we’ve missed.

Human utility
Following directly on from the loss of knowledge comes the loss of things that would have been really useful, had we ever discovered them. We are far more dependent on plants and animals than we usually realize. I’m going to mention two specifics - medecine, and food.

We’ve mentioned this one before, but it’s my favourite example and I’m going to use it again - the Madagascar periwinkle is a pretty but unassuming little pink flower. But contained within that plant was an almost miracle cure for childhood leukemia, that saw survival rates go from 20% to 80%. Another extract is used to tread Hodgkin’s disease, others for diabetes or cancer. These are just some of 70 different useful compounds contained within that one plant.

Perhaps even more remarkable is the story of Cyclosporin. For a long time organ transplants were theoretically possible, but didn’t work in practice because the body’s own immune system kicked in and rejected the transplants. Cyclosporin solved the problem by suppressing the immune system. Remember that handful of dirt? - Cyclosporin is is derived from an obscure little fungus, found in a soil sample collected in Norway. Nobody even knows quite why it works, but it certainly does, and many lives have been saved through transplants.

Consider how many illnesses we suffer from. We haven’t even got a cure for the common cold yet. It may be out there, waiting to be found in one of the thousands of plants we haven’t got round to examining yet: according to The Gaia Atlas of Planet Management, a mere 5% of all known plants have been analysed for medical compounds.

As well as medicine, we depend on the natural world for food. Every food is derived from plants eventually, either directly or indirectly. We depend on a fairly small number of species for our food, wheat, rice, corn and millet in particular. We’ve written elsewhere about the dangers of monoculture, with the collapse of the banana, and if we hit similar problems with rice or wheat, we’re in serious trouble. Our food sources used to be much more diverse, and it’s far safer that way. To quote Wilson again in his book The Creation, “some fifty thousand wild plant species (many of which face extinction) offer alternative food sources… allowing these and the rest of wild species should be considered a part of a portfolio of long-term investment.”

Inherent worth
Both of the points above argue that species should be saved because they are useful to humankind, but this is to see the planet and its contents as tools for us, rather than a functioning world that we are a part of. I think a more compelling reason for conservation is that every species has inherent worth.

http://www.aquaworld-crete.com/images/common-tree-frog.jpg George Monbiot draws a comparison between conservationists and those who save historic buildings, or buy good works of art for posterity. A historic building may not have any particular use, at least not a use that couldn’t be fulfilled by a more modern building, but there’s no question that we should try and keep as many as we can. Likewise nobody argues for art conservation by trying to persuade us that an old master will be useful to us. It’s taken as given that it is valuable, that it is worth saving. Why? Because it’s a masterpiece, because it’s unique, it’s special, it’s beautiful, because we like it. As Monbiot concludes, “it is surely sufficient to say that wildlife should be preserved because it is wonderful.”

The Christian perspective
Finally, as a Christian I believe there is an added motivation to support conservation. If we believe that God made the world, and he made each species, then each one is his handiwork. In the world’s known history, there have been 5 great extinctions where large numbers of animals went extinct in a short space of time. Scientists believe that not only are we entering the 6th major extinction period, but that this time around we are the reasons behind it. Can we stand idly by and let God’s creation be trashed? Genesis tells us that ‘God looked at all he had made, and it was good.’ If God thinks Indonesian tree frogs or Chinese river dolphins are good, who are we to consider them dispensable?

We also believe that God reveals himself through what he has made. We learn about God and what God is like through the workings of the planet and the creatures that inhabit it. We see, for example, that God values diversity, that he appreciates beauty, that he brings new life from old. The world in its fullness is an epic declaration of who God is. When species become extinct, their contribution to that is abruptly ended, their voices are silenced, and there is that little bit less of God for us to discover.

Conclusion
In summary, yes, every species does matter. Each one is worthwhile in and of itself. How we handle each one is a different debate, and there’s no point in being absolutist about it - I’m happy for the anopheles mosquito to live on only in labs. We just don’t know what we have out there, and we are destroying it slowly but surely. It is also worth noting that conservation doesn’t merely attempt to save one species at a time. It strives to save ecosystems and biomes in which species live. Without saving the latter, we’ll lose the individuals. Going back to the metaphor earlier, there is no point saving the book if we’re burning the libraries. Yes, conservation matters, and we all need to take it more seriously.

There have been 85 known mammalian extinctions since 1600. This does not take into account any other animals that may have gone extinct due to a faltering food chain. If any one animal goes extinct repercussions are felt all throughout the food chain, no matter how small or large the beast. One extinction will lead to another, a path many think the world is on. Inevitably, that affects humans too, especially those who live closer to the land than we do, as we are part of the ecosystem too.

What is all the fuss about the rainforest? What will happen if we lose our most productive ecosystem?

The rainforest that once covered 14% of the planet’s surface, now covers a mere 6%. It is estimated that within 40 years our children will be reading about rainforests in recent history books and outdated geography journals. Something we’ve always taken for granted is balancing on the edge of extinction.

Why? what will we lose? How can we stop it?

“Most rainforests are cleared by chainsaws, bulldozers and fires for its timber value and then are followed by farming and ranching operations, even by world giants like Mitsubishi Corporation, Georgia Pacific, Texaco and Unocal.Raintree

Plant and animal species: medicinal plants - Currently, 121 drugs sold worldwide are plant based products. Less than 1% of rain forest plants are being used to produce 25% of the West’s pharmaceuticals. Looking at the forest from this point of view, this leaves another 99% of the forest to be explored and tested for potential medicinal value. The processes necessary for testing plants for medicinal value is extremely time consuming. Unfortunately time is not on our side. With every acre cleared (the current loss rate is one and a half acres a second, worldwide) we could be losing dozens of life saving drugs.

http://content.herbalgram.org/abc/VirtualTour/images/mad_periwinkle.jpgAs an example, the Madagascar periwinkle, or Catharantus Roseus, has been used in traditional medecine for centuries, and once researchers finally began investigating the plant they found no fewer than 70 different alklaloids useful to medecine. Two different compounds could be useful in treating cancer. Another is a natural substitute to insulin. One is used extensively in treating Hodgkin’s disease. A periwinkle alkaloid called vincristine is used in curing childhood leukemia, and survival rates have jumped from 20% to 80% since its introduction. All this from one plant that used to grow in our garden when we were little.

1.4 million species have been named and categorized. It is estimated (although scientists don’t really know) that there could be any number of unknown species ranging from 2 million to 100 million. The comfortable medium science works off is that there are 10 million species yet to be discovered. Considering the tropics’ track record, many botanists and scientists assume a large majority of these live in or around tropical rainforest. The manner in which we are destroying the forest could be compared to bulldozing a hotel before checking to see if anyone is inside.

A famous study in Panama collected “nearly 1,200 species [of beetles alone] were collected. Of those, 80 percent were not known to science.”

Climate: A well known fact is that forests are carbon sinks. Without these forests, climates would be significantly different. Rainforests regulate the planet’s temperature and climate. It is argued that the reason for the excess amount of CO2 in the atmosphere is because of the industrial revolution. This era witnessed abnormal levels of CO2 emissions and is being blamed and associated with global warming. This is however a debated issue as people still suggest that the CO2 has had no effect on climate change. I’m unaware of any research which might suggest that climate change is caused by a lack of forest cover. If a 50% loss in forest carbon sinks resulted in an increase of CO2, one can only speculate as to what would happen should we lose the other half.

Erosion: Trees are renowned for their ability to hold the soil together. They are one of the best methods of coastal, river, and cliff management. In felling and removing trees the soil becomes loose and at the mercy of the weather. When the rain comes, it washes everything away; soil, nutrients, and even more vegetation. This leaves barren farmland and silted water courses. The rivers silt up, blocking ship movements, fishing, and drinking water.

Airplane view of erosion in western Madagascar(Flight from Tana West)

Flying over Madagascar, you can look down on barren hillsides where the trees have been cut down. Sometimes this is from slash and burn practices - burning off the land to stimulate fresh grass growth for cattle. Sometimes it’s for rice paddies. Either way, you can see the results in this picture. The soil washes away, leaving great scars and rifts in the hillsides, and turning the rivers red with dust. (see picture of the Betsiboka river here)

Rainforests are extremely important, and this entry hasn’t even scratched the surface of all the threats, and what we are losing. Making people aware is only the first bite. Biodiversity loss is happening all over the globe, outside of rainforests. Biodiversity stretches through all the biomes of the world from the peaks to the oceans, from the poles to the tropics.

Here is a brief look into what you can do for the forests

Interesting sites to read. Simple but fairly well fleshed out. Have a look - here and here.

A few weeks back someone gave me a copy of a little booklet by the Royal Society, called ‘Climate Change Controversies - a Simple Guide‘. It’s a useful resource, and I thought I’d pass on the link. The above is a pdf, or the questions are all on the Society’s website.

It tackles eight misleading arguments, which are, briefly:

  • The Earth’s climate is always changing and this is just a natural cycle.
  • Carbon dioxide only makes up a small part of the atmosphere.
  • Rises in co2 in the atmosphere are the result of increased temperatures, not the other way round.
  • High altitude temperatures do not support the theory of global warming.
  • Computer models which predict the future climate are unreliable.
  • It’s all about the sun.
  • It’s all about cosmic rays.
  • The effects of climate change are overstated and no urgent action is required.

The climate change section of the Royal Society site is actually very useful in its entirety actually, both in reviewing existing science and finding out the latest developments.

http://www.reactionengines.co.uk/images/lapcat/library/hires/A2_2000_Ground_1280.jpgA new hypersonic jet prototype got everyone excited last week, because the makers claim it could reach Australia in four hours.  Better yet, as it runs on liquid hydrogen, it’s greener than your average plane.

But, can the world actually afford Australia to be that close? I’m exploring the conundrum of the Lapcat A2 over on Celsias.

Faraday Institute LogoA couple of weeks ago I was at a conference in Cambridge, and I met some people from an organisation called the Faraday Institute for Science and Religion. It’s a research enterprise based at St Edmund’s College, Cambridge, and they have more going on than their rather unassuming website would suggest.

Take a look at their multimedia section and you will find dozens of talks and seminars from all kinds of eminent scientists and theologians, on a wide variety of topics. Some of them are mainstream, like climate change and evolution, others noticeably esoteric, like the course on ‘Creation, Evil and Time’ by the ominously named Dr John Polkinghorne. Talks can be downloaded in audio and video or streamed on site. If you’re a Christian scientist, or a science student. There’s plenty of useful perspectives here that you’ll never hear in a church.

More extensive information can be found in the Faraday papers, or for a great summary of the issues around climate change and faith, see Sir John Houghton’s briefing. He’s a former chair of the IPCC, so he knows what he’s talking about.

http://rgcb.res.in/images/index_pic.jpgOn Tuesday the UK government’s chief scientific advisor declared that genetically modified crops were crucial in feeding the world in the future. Sir David King, speaking to the Royal Society, said “By 2050 we will need to feed over 9 billion people on the planet. We will, I believe, only do this with the assistance of a third green revolution, and GM technologies will be crucial in the delivery of this.” Genetically modified crops are not currently grown commercially in the UK, or most of Europe, and Sir David King called on the government to reconsider its position on the matter. In this he echoes George W Bush, who has similarly rebuked European governments. “For the sake of a continent threatened by famine,” he told a biotech conference in 2003, “I urge the European governments to end their opposition to biotechnology. We should encourage the spread of safe, effective biotechnology to win the fight against global hunger.”

But do we really need biotechnology to feed the world? It helps to look at who is calling for it. Read up on the issue, and you find the people shouting loudest for the liberalisation of genetic engineering are those most likely to profit from it - namely, the big agricultural corporations and those funded by them. Monsanto, the world’s leading GM company, is a generous donor, and has been rewarded with a string of appointments across US government agencies. Among the more obvious conflicts of interest are a former Monsanto executive appointed as Deputy Administrator of the Environmental Protection Agency (Linda Fisher), and Ann Veneman, the former Secretary of Agriculture now with UNICEF, who was previously a board member at one of Monsanto’s subsidiaries.

With these kinds of friends, and plenty of lobbying money and PR campaigns, the GM companies are able to present a good case. And at first glance, GM foods make sense: crops that need less water for planting in drought areas, plants more resistant to blights, potato leaves that are poisonous to the beetles that destroy normal potato harvests, foods loaded with extra nutrients for areas where people are under-nourished. At face value, these sound great, and the PR companies get good mileage out of innovations such as ‘Golden Rice‘ - a rice that contains beta-carotene, adding vitamin A. Insufficient Vitamin A can cause blindness, a serious problem in poorer parts of Africa.

However, while Golden Rice may sound like a great idea, only a tiny percentage of the research going into biotechnology is aimed at such worthy causes. According to Peter Singer and Jim Mason’s ‘Eating‘, 99% of genetic modifications are to make crops more resistant to pests or specific herbicides. Monsanto’s ‘Roundup‘ is a classic case, a herbicide that will kill all other plants in a field, but leave the desired crop unharmed. Unfortunately, clearing the land in this way destroys the ecosystem of plants, insects and birds that existed in the field, rendering it effectively sterile, and only good for planting more GM seeds and feeding them up on branded fertilizers. This is at best pointless, at worst hugely destructive. John Robbins, author of Diet for a New America, writes: “we’re spraying our fields and food with a toxic substance to make use of a sophisticated technology that is largely unnecessary. There are simpler mechanical ways to deal with weeds, including no-till farming, mulching, and companion cropping. But of course, none of these Earth-friendly methods can be patented and sold for profit…”

Most genetic experimentation is about ensuring allegiance to the seed companies’ brand, maximising profits, and developing dependencies and monopolies. There are potentially useful developments, but they are not the priority. Even Golden Rice is not all it’s made out to be, with independent research showing you would need to eat at least 27 bowls of it a day to get your daily recommended amount of vitamin A. If Vitamin A is a problem, half a carrot has all you need, or a handful of beans. As Raj Patel points out in his book ‘Stuffed and Starved‘, “the majority of children in the Global South suffer and die not because there is insufficient food, or because beta-carotene is nationally lacking. They are malnourished and undernourished because all their parents can afford to feed them is rice.” To create a new and patented form of rice for someone who can only afford rice, is like trying to sell night vision goggles to someone who can’t afford a candle. The rice is not the problem.

This is the heart of the issue though, that biotechnology is not an urgent science, but is extremely profitable. There may yet be merit in biotechnology, and I’m not against it on principle, but it is disingenuous to claim that the world needs biotechnology to solve the food crisis. It is simply putting a noble face on the hasty and greedy roll-out of a potentially hazardous technology. To bring Africa’s hunger into the picture is particularly insulting. It is surely common knowledge by now that there is enough food in the world to feed everyone, from the huge surpluses of subsidised US corn to the EU’s butter mountains. As Amartya Sen has demonstrated, hunger is a political and economic problem as much as it is an agricultural one. People go hungry not because there is not enough food to go around, but because they cannot afford to buy it. Famine is also caused by conflict, and by displacement. Drought is also a major factor. Biotechnology as it currently stands has no answers to these underlying problems.

If we want to help the hungry, and we promised we would in the UN’s millennium goals, we need to address the real issues. Africa does not need biotechnology. It needs education, good government, and real, un-tied aid for sustainable development. Controlling the arms trade would be a better solution to famine than the introduction of GM seed. If after all those things, biotechnology can be proven useful, then I am not against it, but at the moment championing it is simply marketing in disguise.

Read more:

I was at a lecture yesterday on the environment and christian faith, and in the course of discussion someone mentioned that Christians in the US are the least likely segment of society to take climate change seriously. I thought I’d look that up, and it turns out it’s true. At the risk of wading into some controversial waters, let’s explore this a little.

According to the Christian research group Barna, 51% of America’s 95 million Christians believe global warming is a ‘major’ problem affecting the country. By comparison, 62% of people in other religions believed it was a major issue, and so did 69% of atheists and agnostics. Hmm.

Narrow it down to ‘evangelical‘ Christians, and just 33% are concerned about climate change. “That qualifies evangelicals as the least concerned segment among more than 50 population groups studied”, say Barna. 

Not surprising with figureheads like Jerry Falwell delivering sermons called ‘the myth of global warming’, in which he righteously declared: “I am today raising a flag of opposition to this alarmism about global warming and urging all believers to refuse to be duped by these ‘earthism’ worshippers.” Or this advice from the Evangel Society: “Christians should not worry that their transportation choices might harm other people. Christians can choose to drive how they wish without fearing that their actions contribute to Global Warming”. Search Dr James Dobson’s Focus on the Family website for global warming, and amongst the hundreds of articles on marriage and homosexuality and prayer in schools you’ll find headlines like ‘Stoplight: global warming and the nation-sized error’, ‘Scientists renounce global warming alarmism’, and ‘Study: no global consensus on global warming’.

As a Christian in the UK, this is odd to me. Although Christian might not be leading the way in tackling climate change (although I think we should be), we’re at least aware of it and willing to engage with it. The Bishop of London vowed not to fly for a year to set an example. Elaine Storkey, president of Tearfund, says in Christianity Magazine: “A key part of loving God is to exercise faithful stewardship of the world God has made. A key part of loving our neighbour is not to harm them or exploit their vulnerability to climate change.”

Of course, there are climate change believers in the US too - a group of 86 evangelical leaders issued a statement on the issue not long ago that is worth reading. But why is it so difficult for American Christians to embrace climate change science? I have a few ideas.

  1. Politics. It’s worth remembering, for those of us outside the States, that one of the biggest influences on the debate has been An Inconvenient Truth, and that this is a film made by a Democrat. Christians tend to be Republicans, and just wouldn’t bother to see the film. Al Gore is a Democrat hero, so his people will listen to him. The Republicans are far less likely too. Barna’s research reflects this political divide, with 67% of Democrats saying climate change is a major issue, and just 38% of Republicans.  Who’s going to make a film for the Republicans?
  2. Science. It’s very difficult to engage with climate change, or environmental concerns more generally, without the prickly issue of origins coming up. If you want to hold to a literal Genesis, and hence a young earth and a six day creation, you’re going to have trouble with the world of science fairly quickly. That makes some Christians wary of scientists, and potentially more skeptical than most.
  3. Economics. It’s no secret that the American church is very wealthy. The same loud voices attacking the idea of climate change defend Christians’ rights to affluent lifestyles. “God is in favour of freedom, property ownership, competition, diligence, work, and acquisition” says Falwell in his book Wisdom for Living. Climate change requires us rich people to lay aside some of our ‘rights’ – rights to fly, to drive SUVs, and so on. The richer we are, the more likely we are to need to examine our lives and make some cutbacks. Christians can’t use the Bible to justify ecologically wasteful lifestyles.
  4. Theology. Traditionally, the church has taught more about personal wrongdoing, or sin, than corporate irresponsibility. We haven’t talked much about ethics in public life, and so environmental and social justice issues have got sidelined or ignored by the American church as they focus on personal morality, on abortion and homosexuality. Alongside that, the Christian message has been reduced to ‘personal salvation’. The environment pales into insignificance, say the Evangelicals, compared to eternal damnation, and so the church is focused on future heaven, while the present goes to hell.

I’m not an American, so I’m probably not getting the whole perspective. My opinion from across the pond is that American Christianity has become narrow, politicized and entrenched, at least on this issue. Personally, I think there’s a whole wealth of opportunity for Christians to involve themselves in environmental action, if we could see it. Perhaps I need to write a bit more about what those opportunities are. Or then again, maybe I’m just a deluded ‘earthism’ worshipper.

Global warming is pretty much an accepted fact of life in the 21st Century, but the causes of it remain a little controversial. There are two schools, it seems. The first, popularised by the likes of Al Gore, is that our carbon emissions are trapping heat within the atmosphere and causing the planet to heat up. The second school of thought, championed by the makers of programmes like The Great Global Warming Swindle, is that the world goes through natural heat cycles, and that the sun and the clouds are more important factors than CO2. But both agree that the world is heating up - so why is only one side calling for change?

Read the rest of this article on Celsias…

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