we can talk now to dock to emily shugborough, cambridge university's chief climate scientist. this programme in 2019 about carbon emissions, and it seemed impossible that we would get a drop, but that is what has happened, but put it into context for me, how significant and sustainable is that? well, it is probably no surprise that as a consequence of the global lockdowns that we have seen around the world, emissions are likely to be somewhat lower this year, may be about 7% lower. but that is emissions. the concentrations of greenhouse gases in the atmosphere are still rising rapidly. if we look back in earth's history, the last time concentrations were so high was about 3 million to 5 million years ago, when temperatures were 2—3 celsius warmer than they are today, and the seas were some 20 metres higher. 2020 is likely to be the hottest or second hottest year globally, what stands out for you in 2020? -- ten globally, what stands out for you in 2020? —— ten to globally, what stands out for you in 2020? -- ten to 20 globally, what stands out for you in 2020? —— ten to 20 met

we can talk now to dr emily shugborough, cambridge university's chief climate scientist. t is what has happened in 2020, but put it into context for me, how significant and sustainable is that? well, it is probably no surprise that as a consequence of the global lockdowns that we have seen around the world, emissions are likely to be somewhat lower this year, may be about 7% lower. but that is emissions. the concentrations of greenhouse gases in the atmosphere are still rising rapidly. if we look back at earth's history, the last time concentrations were so high was about 3 million to 5 million years ago, when temperatures were 2—3 degrees celsius warmer than they are today, and the seas were some 10—20 metres higher. 2020 is likely to be the hottest or second hottest year globally, what stands out for you in 2020 in terms of heat trends? we have seen places around the world with exceptional heat, california was particularly warm. and that was associated with wildfires that caused absolute devastation. we also saw devastating wildfires in australia at the start of the year