The trust says it is "overwhelmed" and would keep the appeal backed by Sir David Attenborough open.
Read moreDavid Attenborough
Boris Johnson unveils the plan as he launches a "year of climate action" alongside Sir David Attenborough.
Read moreThe broadcaster and naturalist says the Glasgow climate summit later this year is "extremely important".
The naturalist speaks at a newly-formed citizens' assembly examining how the UK cuts emissions.
Read moreThe naturalist and broadcaster has warned that "the moment of crisis has come".
David Shukman
Science editor
We're at a pivotal point in efforts to tackle climate change, the naturalist and broadcaster warns.
Read moreGreta Thunberg's father on his daughter's journey from struggling schoolgirl to climate activist.
The activist's father says he thought her skipping school to fight climate change was a "bad idea".
Read moreThe teenage activist and veteran naturalist talk to each other for the first time (via Skype).
Mark Savage
BBC music reporter
How musician James Blake blagged unseen Planet Earth footage from the BBC for his new video.
Read more




