Research backed by the US Department of Energy estimates continued investment in R&D could make onshore wind one of the country's cheapest energy sources by 2030
State Department plans to cut or move at least 30 special envoy roles as part of departmental re-organistaion
The term 'climate change' was changed to simply 'climate' on website of the National Institutes of Health, the world's leading public health research body
President says projects will still need to meet 'environmental safeguards', as he rolls back rules designed to limit flooding and sea level risks
Stock value of Clean200 list, which ranks firms according to their clean energy revenues, overtook fossil fuel benchmark on inauguration day and finishes first year with a 16.9 per cent return
New York Times reveals government report lays bare impact of climate change across US, but scientists fear Trump administration may suppress it
Letter to UN Secretariat marks the first step of US exit from Paris Agreement, slated for November 2020 unless 'renegotiation' offer proves viable
EPA administrator Scott Pruitt U-turns on plan to delay deadline to comply with ozone air pollution rules following lawsuit from 15 states
French President raises prospect of US returning to the international climate accord in some form
Michael Bloomberg launches 'America's Pledge' on climate change as California Governor Jerry Brown sets out plan to strengthen California's carbon trading rules and cut air pollution