Many Republicans poised to stream into Florida for their nominating convention next week have doubts about climate change, if polls are right. Yet scientists say the GOP's swashbuckling event is happening within sight of climate impacts. Go to story #1

Since word got out that Michael Hoffmann and a team of his students had developed a state-of-the-art, sustainable, energy-producing toilet for rural, developing countries, his phone has begun to ring much more frequently. Hoffmann, a California Institute of Technology professor, was the team leader for Caltech's winning entry into the Bill and Melinda Gates contest to invent a more sustainable toilet. He and his team of six developed a flushing toilet that sanitizes the water and produces hydrogen from human waste to create electricity. Go to story #2