Boris Johnson challenged on refusal to take part in climate debate

The transcript discusses the refusal of UK leaders to participate in a Channel 4 News debate on the climate emergency, emphasizing the importance of accountability on this critical issue. It highlights the speaker's agreement to debate with the Labour Party leader, the only other candidate for Prime Minister, and explains the decision not to debate with Nicola Sturgeon. The speaker outlines the UK government's transformative actions on climate change, including setting a carbon-neutral target by 2050 and doubling funding to tackle climate change globally, with a commitment of 11.5 billion over the next five years.

Why does the speaker see no reason to debate with Nicola Sturgeon?

What is the amount of funding mentioned for tackling climate change around the world?