But green groups accuse senators of watering down proposals as part of compromise package
Software to calculate carbon emissions from across a company's supply chain
New report claims high-altitude turbines or kites could harness wind speeds that are 10 times faster than at ground level
New report warns climate change is already affecting US through droughts, heat waves, storms and public health threats
Ambitious hydrogen and carbon capture clean coal project back on the cards after Obama administration announces over $1bn in new funding
Lobby groups argue new promise to tighten water pollution oversight will not do enough to limit impact of "abhorrent" mining projects
New proposals designed to speed up process for assessing risks from new chemicals
New study of nearly 300 communities finds economic benefits from tropical deforestation are short-lived