The U.S. and Australia have been the breadbasket that fed famine-stricken areas of Africa and Asia in recent decades. Global climate change may be weakening that foundation of world food security.

"Protesters hope to persuade President Obama not to approve the controversial Keystone XL oil pipeline that would run from Canada to Texas. But the State Department already says its safe, and supporters point to thousands of new jobs."

"The editor of the journal Remote Sensing resigned [Friday], saying in an editorial that his journal never should have published a controversial paper in July that challenged the reliability of climate models used to forecast global warming. The paper, by Roy Spencer and William Braswell of the University of Alabama in Huntsville, proposed that climate researchers have likely made a fundamental error by overestimating the sensitivity of the climate to greenhouse-gas pollution."

"At the rim of the Arctic Circle in Canada, gold mining firm Agnico-Eagle is learning how tough it is to operate in a remote region with temptingly large, but frustratingly inaccessible, reserves of oil, gas and minerals. Commentators rarely mention nightmarish logistics, polar bears and steel-snapping cold when they confidently predict that as the Arctic warms up, melting sea ice and shorter winters will open up the expanse to exploration."

"When state officials published the last Texas State Water Plan five years ago, they conspicuously and controversially chose not to factor man-made global warming into their planning.

Now, with just four months to go until the Texas Water Development Board is required to adopt an updated rendition of the comprehensive water-supply blueprint for the state, the agency is still deciding how to address human-caused climate change, the board chairman told a Houston audience recently."

"A record rise in global greenhouse emissions and ever tighter economic constraints make it crucial for United Nations climate talks in South Africa in November to overcome years of deadlock and deliver a solution, the U.N.'s climate chief told Reuters."

"For centuries, water has been a potent weapon between warring states. When Pisa was at war with Florence, Leonardo da Vinci and Machiavelli planned to divert the Arno and leave Pisa dry."

"The National Park Service sees an opportunity to educate the public on climate change by leveraging its rangers' authority and expertise. But progress remains sporadic."

Kate Johnson reports for the Daily Climate August 30, 2011. [35]

"The state of Alaska filed notice on Friday that it will appeal a federal judge's ruling upholding the listing of polar bears as a threatened species."