Senate Democrats call for EPA chief to resign. Four Democratic senators on Tuesday called for Stephen Johnson to resign as administrator of the EPA and asked Attorney General Michael Mukasey to begin an investigation into whether he lied in testimony to a Senate committee. [News Source]

Vermont’s unique approach to curbing energy use. In 2000, Vermont instituted an aggressive program to reduce statewide energy consumption. In the eight years since, it has proven to be one of the country's most innovative and successful conservation initiatives. [News Source]

Calif. field goes from rush to reflection of global limits. Today, on an arid stretch, thousands of black derricks crowd the landscape, sipping crude oil from the field discovered a century ago. The wells aren't gushers these days, but they still squeeze out a few barrels a day here, a few more there. [News Source]

Candidates agree on warming, not tactics. Two things are certain about the next U.S. president: He will be a former senator, and he'll push Congress to pass a cap-and-trade system to limit carbon emissions. [News Source]

Melting permafrost poses threats to infrastructure, Alaska economy. As temperatures warm across Alaska, the temperature of the frozen ground is warming, too. In some places, it’s warmed to its own tipping point of 32 F, at which point it stops being permafrost and starts being water and soil. [News Source]

US blacks face harsher climate change impact. American blacks are likely to suffer disproportionately from climate change and they are willing to pay to combat it, a commission aimed at raising awareness about global warming said on Tuesday. [News Source]

Mediterranean climate moves bird population. Northern species of birds in Britain are dwindling while southern species are breeding more because of Britain's increasingly "Mediterranean" climate, scientists said today. [News Source]

Global climate change would be tough on Illinois. The prospect of continued climate change will have a big impact on Illinois agriculture in the years ahead. Waterfront property and snowmobile sales are also likely to be affected, a new study says. [News Source]

Report outlines warming in region. A new report on the possible impact of climate change on western Montana finds changes are already underway. [News Source]

Global warming affects insurance. Computerised catastrophe modelling that factors the impact global warming might have on the frequency and intensity of hurricanes is increasingly being used by re–insurers to price their insurance rates. [News Source]

Mountain glaciers in Peru are receding rapidly due to global warming. Satellite images have revealed that mountain glaciers in Peru are receding rapidly due to global warming, with 26 per cent of their surface area lost in the last 33 years. [News Source]