US, other wealthy nations vow global warming cuts. President Barack Obama and other leaders of the world's richest industrial countries pledged Wednesday to seek dramatic cuts in greenhouse gas emissions by 2050 to slow dangerous climate change and agreed that worldwide temperatures must not rise more than two degrees Celsius. [News Source]

Promises, promises: Obama’s pledge at G-8 on climate change relies on politics back home. President Barack Obama made the world his boldest promise yet Wednesday in the battle to slow the heating of the planet. The catch is that politics at home will determine if the U.S. — and Obama — can deliver. [News Source]

Developing nations tackle climate. Following up on a pledge to halve its emissions by mid-century, the Mexican government is finalizing regulations that would curb the country's projected emissions by more than 6% over the next three years--the most aggressive planned cut among developing nations so far. [News Source]

Climate change could boost U.S. dengue fever cases. Climate change could push dengue fever into all corners of the United States, as the mosquitoes that can carry the traditionally tropical virus survive warmer U.S. winters, researchers said on Wednesday. [News Source]

Big economies agree to global warming accord. For the first time, the United States has joined European countries in seeking to keep average temperatures from climbing more than two degrees celsius above their pre-industrial levels, a potentially costly cap. [News Source]

G-8 climate-change agreement falls short . China, India and other developing-country polluters backtracked from their own commitment to numerical targets after Group of Eight leading nations failed to reach accord on short-term emissions targets Wednesday. [News Source]

Shell says U.S. oil refiners need more CO2 permits. Major oil company Royal Dutch Shell urged the U.S. Senate on Wednesday to give oil refiners a bigger share of free pollution permits under a cap-and-trade plan than the House of Representatives provided in its climate change legislation. [News Source]

Greenpeace scales Mt Rushmore.. Early this morning, members of Greenpeace climbed atop the 5,700 foot mountain and at exactly 10:00am, unfurled a sign which read, “America honors leaders not politicians: stop global warming.” [News Source]

Pressure grows on Australia on emissions. The world's biggest economies have called on all developed countries to slash greenhouse gas emissions, putting pressure on Australia to beef up its own reduction target. [News Source]

Lion Oil exec: Climate bill could end refinery. Lion Oil Co. will not survive if Congress passes the present form of a bill limiting pollution linked to global warming, a company executive in El Dorado said Wednesday. [News Source]

North Sea ‘crunch’ on way, energy chief warns. Britain faces an “energy crunch” if steps are not taken to help its offshore sector, an industry leader warned yesterday. [News Source]