All we do now to save salmon could mean nothing. Fish that spawn in the south and in the summer will die first as the world warms. Idaho's high-elevation runs may offer one of the best chances the species has. [News Source]

Climate change may increase mercury levels in seals. Climate change in the Arctic may be boosting levels of highly toxic mercury in seals, one of the most commonly eaten traditional foods in the North. [News Source]

Debate about ‘Ike Dike’ continues. “Ike Dike” has become the recovery buzzword for islanders already getting anxious about the start of this year’s hurricane season. The system is likely to cost billions, and more as climate change forces constant improvements through the years. [News Source]

Driving into the future with biofuels. When the Model T left the assembly line, by design it could run on ethanol or gas. Henry Ford, the car's manufacturer, envisioned a day when ethanol would provide the bulk of fuel for motor vehicles.More than a century later, Ford's dream is back in force. [News Source]

Ethanol test for Obama on climate change, science. President Barack Obama's commitment to take on climate change and put science over politics is about to be tested as his administration faces a politically sensitive question about the widespread use of ethanol: Does it help or hurt the fight against global warming? [News Source]

Entergy pushing emissions cap bill. Entergy Corp., the New Orleans-based Fortune 500 electric company, is singularly focused on getting Congress to enact the most aggressive carbon-dioxide-emissions cap it can. [News Source]

Better a whistleblower than a spy. The climate change activist Tilly Gifford has won praise for going public with a covert police attempt to recruit her as an informant [News Source]

Class studies climate’s impact on lake. As the New England climate warms, Lake Champlain is likely to become richer in phosphorus and more susceptible to noxious blue-green algae blooms. Mass die-offs of alewives may occur more frequently, while potentially toxic mercury content may rise in food fish. [News Source]

Laser quest: The scientist with a planet-saving plan straight out of Spider Man. Clean energy forever. That, in a glorious theoretical nutshell, is what nuclear fusion – the reaction that gives stars and hydrogen bombs their immense power – could deliver. [News Source]

Carbon trading could hurt coal industry. When the Prairie State Energy Campus cranks out its first kilowatt hour of electricity -- which is scheduled for two years from now -- it could end up costing ratepayers way more than anyone had predicted. [News Source]

The sustainable family drops by. There are many things people can do to raise awareness of climate change but few are as challenging as Dario and Sabine Schwoerer’s epic adventure. [News Source]