Cement from CO2: A concrete cure for global warming? By bubbling a power plant's flue gas through the nearby seawater, a new California-based company called Calera says it can use more than 90 percent of that CO2 to make something useful: cement. [News Source]

Put roo on the menu or rue the day. After installing solar panels, buying a hybrid car and turning off the air-conditioner, the climate-conscious Australian is now being asked to eat kangaroo. [News Source]

Hike carbon tax, B.C. advised. B.C.'s carbon tax likely must be raised beyond the levels already envisioned to fight global warming, according to the province's Climate Action Team. [News Source]

Kangaroo farming would cut greenhouse gases: study. Farming kangaroos instead of sheep and cattle in Australia could cut by almost a quarter the greenhouse gases produced by grazing livestock, which account for 11 percent of the nation's annual emissions, said a new study. [News Source]

China: Does cleaner air mean more global warming? Particles in air pollution cool the Earth by shielding the sun and bouncing its rays out to space. If you think the idea that making the air cleaner can cause global warming sounds like a Faustian bargain of the worst kind, well, you're getting warmer. [News Source]

Groups sue feds to stop Keystone line. Environmental groups have sued the U.S. State Department to stop the TransCanada Keystone Pipeline, saying the government failed to fully consider its health and environmental hazards, including global warming, before giving approval. [News Source]

Samoans strive to survive rising tide. The water isn't up to his chin yet, but Samoan choreographer Lemi Ponifasio sees it rising. In the Kiribati Islands, the tide reaches higher and higher. In nearby Tuvalu, the ocean has swamped and poisoned farmland with its salt. [News Source]

Pacific shellfish ready to invade Atlantic. As the Arctic Ocean warms this century, shellfish, snails and other animals from the Pacific Ocean will resume an invasion of the northern Atlantic that was interrupted by cooling conditions three million years ago. [News Source]

UN asks govts to combat effects of climate change. With eight of the world's 10 most populous cities situated near rivers or seas and already witnessing hazards of flooding, a United Nations-backed report calls on governments to take urgent steps to protect their cities from adverse effects of climate change. [News Source]

Pacific species set to invade warmer Arctic, Atlantic waters. A new study predicts the Arctic and Atlantic oceans will face an invasion of Pacific Ocean species as warmer waters and ice-free conditions transform the polar region and reopen a migration route for sea creatures that has been closed for more than three million years. [News Source]

Suburban teen’s monster kidney stone highlights growing health concern. The heat of summer, changing diets and even global warming are thought to be contributing to an increase in the number of kidney stones in the Chicago area. [News Source]