“The more people invest in fossil fuel companies, the more these companies will exploit fossil fuels”
Bob Watson former Chief Scientific Adviser to the UK Environment Department

The Guardian has selected top quotes from people at the forefront of the debate, from Barack Obama to Desmond Tutu, leading scientists to politicians and activists. Read and share your favourites

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Who can forget the images of the Thames bursting its banks, or homes turned to islands on the Somerset Levels? Nick Miller looks back on the year the weather became the news.

BBC News: 2014 The Weather Year (30 mins) Available for 28 days