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Climate change: A guide for the perplexed

发布时间:2019-04-03 14:06:10来源:未知点击:

By Michael Le Page There’s a lot at stake with global warming Our planet’s climate is anything but simple. All kinds of factors influence it, from massive events on the Sun to the growth of microscopic creatures in the oceans, and there are subtle interactions between many of these factors. Yet despite all the complexities, a firm and ever-growing body of evidence points to a clear picture: the world is warming, this warming is due to human activity increasing levels of greenhouse gases in the atmosphere, and if emissions continue unabated the warming will too, with increasingly serious consequences. Yes, there are still big uncertainties in some predictions, but these swing both ways. For example, the response of clouds could slow the warming or speed it up. With so much at stake, it is right that climate science is subjected to the most intense scrutiny. What does not help is for the real issues to be muddied by discredited arguments or wild theories. So for those who are not sure what to believe, here is our round-up of the most common climate myths and misconceptions. There is a guide to assessing the evidence, and the articles we’ve included contain lots of links to primary research and major reports for those who want to follow through to the original sources. New: Any cooling disproves global warming Global warming stopped in 1998 Antarctica is getting cooler, not warmer, disproving global warming Polar bear numbers are increasing The lower atmosphere is cooling, not warming The oceans are cooling Mars and Pluto are warming too Human CO2 emissions are too tiny to matter CO2 isn’t the most important greenhouse gas Ice cores show CO2 increases lag behind temperature rises, disproving the link to global warming Ice cores show CO2 rising as temperatures fell The cooling after 1940 shows CO2 does not cause warming It’s too cold where I live – warming will be great We can’t do anything about climate change Global warming is down to the Sun, not humans It’s all down to cosmic rays The ‘hockey stick’ graph has been proven wrong It’s been far warmer in the past, what’s the big deal? It was warmer during the Medieval period, with vineyards in England We are simply recovering from the Little Ice Age Warming will cause an ice age in Europe Higher CO2 levels will boost plant growth and food production Hurricane Katrina was caused by global warming Chaotic systems are not predictable We can’t trust computer models of climate Many leading scientists question climate change It’s all a conspiracy New: The leaked emails prove it’s a conspiracy They predicted global cooling in the 1970s More on these topics: