We're climate researchers and our work was turned into fake news
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Science is slow. It rests on painstaking research with accumulating evidence. This makes for an inherently uneasy relationship with the modern media age, especially once issues are politicised. The interaction between politics and media can be toxic for science, and climate change is a prominent example.Take the recent “deep freeze” along the US east coast. To scientists, it was one more piece of a larger jigsaw of climate change disrupting weather systems and circulation patterns. This includes dramatic changes seen in Arctic sea ice and the knock-on effect on temperatures elsewhere in northern latitudes – both warming and relative cooling. To President Donald Trump the cold snap was a chance to mock climate change, and some sceptics suddenly talked about an impending ice age. Colleagues and I experienced similar frustrations in late 2017, after we published a paper in the scientific journal Nature Geoscience, in which we concluded that there was more headroom than many had assumed before we breach the goals of the Paris Agreement. We found ourselves not only on the front page of the main British newspapers, but globally, as far-right website Breitbart ran with a story that a small band of buccaneering scientists had finally admitted that the models were all wrong – a fiction rapidly picked up by the more rabid elements in the media. The essence of good science is to continually update, challenge, improve and refine, using as much evidence as possible. Single events rarely make for good science. And if every painstaking evaluation, updating work from years ago, may be portrayed as demolishing everything that went before – particularly at the whim of non-scientific agendas – then we have a major dilemma. The edifice of science is built with small bricks and this research was no exception. We emphatically did not show that climate change was “less bad” or “happening slower” than previously thought. Our work built on the many previous scientific studies that had looked at the risks of unchecked emissions and the prospects for limiting warming to 2℃ above pre-industrial levels. The Paris Agreement went further, aiming to “pursue efforts” towards a more ambitious goal of just 1.5℃. Given we’re already at around 1℃ of warming, that’s a relatively short-term goal. Greater ambition therefore requires greater precision. Our study took a microscope to that question. Where previous estimates were drawn from a range of mostly long-run models that looked at century-long changes, we instead focused on a precise definition and current starting point, and other factors which matter far less in the long term, but a lot if the goal is much closer. Some of the earlier estimates seemed to imply a “headroom to 1.5℃” of less than a decade of current emissions – clearly unachievable given the long timespans and huge inertia. We estimated about 20 years – equivalent to global CO₂ emissions falling steadily from now until hitting zero in around 40 years – and made it plain that it still looks, to put it mildly, a formidable ambition. Other studies have since come to similar conclusions.
A (non-)story of revolution
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