We need to cut emissions. We need renewable energy. We also need to consider the use of nuclear power.
We haven't yet seen many of the negative effects of climate change in the UK - but we will.
We also need to highlight the many associated positives of taking action.
'We're probably not going to get anywhere close to 81% unless we look at nuclear.'
Environmental scientist, Professor Christian Dunn, reacts to Keir Starmer's target of cutting Britain's carbon emissions by 81% by 2035.