Photographer Daniel Beltra offers insight into his experience documenting the Gulf oil spill and his ongoing motivation to capture our changing environment. His interview on "ICE," uploaded August

Photographer Daniel Beltra offers insight into his experience documenting the Gulf oil spill and his ongoing motivation to capture our changing environment. His interview on "ICE," uploaded August 4, 2010, is available here. Explore more of his work on his website.

Beltra was also shortlisted for the Prix Pictet, the global award in photography and sustainability, for his powerful series, "Spill."

After teaching Geoscience, Marine Science, and Environmental Horticulture, Matt became concerned about modern agriculture's impact on ocean health. This led him to reconnect with his old

After teaching Geoscience, Marine Science, and Environmental Horticulture, Matt became concerned about modern agriculture's impact on ocean health. This led him to reconnect with his old Peace Corps friend, Nathan.

In 1999, Matt and Bobbie Brown met Nathan McFall in Togo, West Africa, where they collaborated with local communities on environmental education, soil conservation, and animal husbandry. You can learn more about Nathan's work here.

In summer 2010, the Brown family moved to Milwaukie, Oregon. There, they partnered with Nathan to establish the non-profit Food|Waves. Matt was interviewed by EarthSayers.tv in July 2011.

Rachel Carson, often dismissed as "hysterical," courageously confronted powerful chemical companies. Her groundbreaking 1962 book, *Silent Spring*, meticulously exposed the devastating

Rachel Carson, often dismissed as "hysterical," courageously confronted powerful chemical companies. Her groundbreaking 1962 book, *Silent Spring*, meticulously exposed the devastating environmental impact of pesticides.

Carson's compelling arguments ignited public awareness, fundamentally challenging industrial practices and laying the groundwork for the modern environmental movement.

NASA's MODIS instrument, aboard the Terra and Aqua satellites, captured images of the Deepwater Horizon oil spill in the Gulf of Mexico. The spill began on April 20, 2010, following the rig's

NASA's MODIS instrument, aboard the Terra and Aqua satellites, captured images of the Deepwater Horizon oil spill in the Gulf of Mexico. The spill began on April 20, 2010, following the rig's explosion.

A short video provides a space-based view of the burning rig and the ensuing oil slick through May 24, 2010. The slick, appearing grayish-beige, changed due to weather, ocean currents, and chemical dispersants.

The full image archive is available on the MODIS Rapid Response Web site: http://rapidfire.sci.gsfc.nasa.gov/. Credit: http://svs.gsfc.nasa.gov/goto?10562

Yingling Liu, China Program Manager at the Worldwatch Institute, is a recognized expert.

She focuses on critical issues impacting China.

Her discussions center on the nation's energy

Yingling Liu, China Program Manager at the Worldwatch Institute, is a recognized expert.

She focuses on critical issues impacting China.

Her discussions center on the nation's energy and environmental challenges.