An acidic ocean threatens shellfish farms. For more than two decades, Rob Saunders grew his shellfish larvae in ordinary seawater drawn from the pristine natural environment of Baynes Sound. Now the water in Baynes Sound is so acidic, Mr. Saunders’ fragile seed stock will die unless he artificially adjusts the PH level in his hatchery tanks. [News Source]

Airlines ready for next battle against EU carbon law. Twenty-six nations are expected to lodge a formal protest on Wednesday against a European Union law to make airlines pay for carbon emissions -- adding to transatlantic tension on an issue that has triggered a tit-for-tat bill in the Congress. [News Source]

Accounting firm captures heat for data center cooling. The energy system at KPMG's suburban data center is an example of combined heat and power – a "proven, reliable and cost-effective" technology that could be much more widely deployed worldwide to save energy and cut carbon emissions, the International Energy Agency says. But numerous barriers keep it from taking off. [News Source]

Extreme weather pushes up food prices — and unrest. This past year the world has witnessed a spike in food prices, which some experts believe correlate with the rising number of developing countries experiencing societal unrest. [News Source]

Alaska’s ‘age of glaciers’ will end this century. Much of the world's ice may soon disappear for good, triggering a global climate regime that humans have never experienced as a species. [News Source]

Exelon’s Rowe an unlikely booster for shale gas. Rather than erecting barriers to natural gas, the chief executive of Exelon Corp. believes government should embrace the newfound domestic fuel source that produces less pollution than other fossil fuels such as coal or petroleum. [News Source]

Oregon city aims to cut fossil fuel use in half. To reduce greenhouse gas emissions , the city of Eugene has an ambitious environmental goal: cut fossil fuel consumption — including gasoline — in half by 2030. [News Source]

Scientist who claimed ‘end of scepticism’ on climate change under fire from colleague over ‘huge mistake’. One of the authors of a scientific study billed as the ‘end of scepticism’ about climate change yesterday threatened to quit after she said the project leader underplayed the fact there has been no global warming for 13 years. [News Source]

The global coal trade’s complex calculation. Coal producers in Wyoming and Montana are hoping to ramp up their sales to China. Activists are concerned about global warming. But a thriving export market could also drive up the price of coal here in the United States - and knock down domestic emissions. Second of two parts. [News Source]

Opposition bid to block carbon tax bills defeated. Debate on the government's carbon tax has got off to a spluttering start in the Senate. [News Source]

Eleven challenges facing 7 billion super-consumers. Though rarely addressed directly in policy (and more often than not avoided in polite conversations), the issue of overpopulation is central to environmentally sustainability and human welfare. [News Source]