USA

States with strong green voices perform better on cutting emissions whereas those with climate sceptic views fare poorly

Goldman Sachs and University of California among those committing to scale up finance in climate change fight

Forget New York and San Francisco - The tech and telecom giants are going Midwestern with an Internet of Things deal worth an estimated $15m

Ruling prompts agency to start formulating standards to regulate sector under Clean Air Act

More than 100 US and Canadian scientists publish letter saying tar sands crude should be relegated to fuel of last resort, because it causes so much pollution

Union of Concerned Scientists analysis of INDC plans highlights US and EU failure to address emissions from forests and agriculture

World Resources Institute study shows how existing policies can deliver 26 to 28 per cent CO2 cuts by 2025

Commencement address to new coast guard cadets warns "climate change constitutes a serious threat to global security-an immediate risk to our national security"

Gina McCarthy urges businesses to seize the opportunities presented by decarbonisation

Proceeds will be used to finance clean energy and efficiency projects as part of company's $70bn environmental commitment