Nick Clegg promised that the government would be “the greenest ever”. We must ensure that Liberal Democrats don’t vote to lift a European ban on buying tar sands oil. Getting oil from tar sands is a environmental disaster. Beautiful areas of unspoilt wilderness get dug up, and covered with open pit mines, toxic lakes, oil refineries and pipelines.

We need tell Nick Clegg to push his ministers to step up on climate change. If thousands of us get in touch with him, telling him to make sure his colleagues do a proper job, he’ll know he has no choice but to bring them into line and tell them to do the right thing.

Click “get started” on the right to send Nick Clegg a message.