The UK-based international development agency Christian Aid is encouraging supporters to write to UK Prime Minister David Cameron, reminding him of his pledge that his government will be the greenest ever - both in terms of action at home and internationally.
The agency is calling on the PM and the British government to act decisively to help get United Nations climate change talks back on track, and in particular, to deliver a deal that works for the world's poor.
As part of Christian Aid's supporter day on Wednesday 20 October 2010, they will be handing in a letter to Mr Cameron and hope that it will contain many thousands of signatures, confirming the churches' and the British public's support for action to defend the environment and assist the world's most vulnerable.
On the action day itself, leading US civil rights campaigner the Rev Jesse Jackson will be addressing the crowd, along with Christian Aid's director, Loretta Minghella, and the head of Christian Aid Scotland, the Rev Kathy Galloway - former leader of the Iona Community.
Those involved will also be hearing directly about the day-to-day reality of the fight against poverty and injustice from campaigners from India and Zambia.
The letter to the Prime Minister calls for adequate resources for developing countries to adapt to climate change and to develop cleanly, in addition to current aid commitments.
It also asks for European Union domestic emissions cuts of at least 40 per cent by 2020.
You can sign the letter here: http://tinyurl.com/2ww2st9