http://www.ted.com Human growth has strained the Earth's resources, but as Johan Rockstrom reminds us, our advances also give us the science to recognize this and change behavior. His research has found nine "planetary boundaries" that can guide us in protecting our planet's many overlapping ecosystems. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com

Western societies have been trying to clean up their act for decades. However, that clean-up has had very dirty consequences, but there is hope. Listen to Hilde Opoku's story of how Ghana and Norway are forging ahead as leaders in the fight for a better environment for all. Hilde Opoku, Deputy Mayor and Leader of the Green Party in Trondheim. Former spokesperson for the Green Party in Norway from 2014 to 2016, Hilde is a political scientist with a specialization in industrial ecology. She previously worked at the Department of Industrial Ecology at the Norwegian University of Science and Technology (NTNU) before entering politics in 2003 when she was elected to the city council of Trondheim.