Communicating the 1.5°C target

International climate negotiations are conducted in the language of headline numbers, such as global average temperatures and calculations of how many more gigatonnes of greenhouse gases remain in our planetary budget. These calculations are essential to setting targets and monitoring progress of different countries in meeting their obligations to international agreements. However, this technical and

Science & advocacy: should climate change scientists engage in policy advocacy?

Confronting the risks presented by climate change will involve input from scientists – but scientists are not decision-makers elected to make policy decisions. So how should the expertise and opinions of scientists be factored into political and societal choices about climate change? Most people want scientists to remain politically neutral and independent; climate-change scientists should