Climate science explained in 60 seconds by the Royal Society and the US National Academy of Sciences. During the last 200 years, human activities such as the burning of fossil fuels have increased concentrations of CO2 in the atmosphere by 40%. If unchecked, continuing emissions will warm up the planet by 2.6°C to 4.8°C by the end of this century. This would have serious implications for human societies and the natural world. This 60-second animation from the world's two leading science academies brings you the science behind climate change. Looking for more? - How confident are scientists that Earth will warm further over the coming century? - Are climate changes of a few degrees a cause for concern? - Climate is always changing. Why is climate change of concern now? Get a quick guide to the frequently asked questions about climate science on our website. Accessible, informative and up-to-date: The full document 'Climate Change: Evidence & Causes' is available to read on the Royal Society website: royalsociety.org/policy/projects/climate-evidence-causes/

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