For global warming to beunder 1.5°C, emissions must fall 42% by 2030, compared to 2019 levels. For 2°C, emissions must fall 28% by 2030

The headlines are pretty grim - without action the world could warm by a massive 3.1C this century, the UN says in a new report published today. But how likely is that? As is often the case with climate change and the science behind it - the answer is complicated.

The United Nations Environment Programme has called for a 42% cut in annual global greenhouse gas emissions by 2030 to limit warming to 1.5 degrees Celsius, urging G20 nations to heighten their climate action.

In a report on the emission cuts needed to limit global warming to 1.5°C, the UN said the goal would 'soon be dead' without a global mobilisation on a scale and pace never seen before.

World on track for ‘catastrophic’ 3.1C of global warming this century, UN warns - International goal to limit warming to 1.5C will ‘soon be dead’ without a massive mobilisation to cut climate emissions,