The Indian Ocean tsunami of 2004 claimed the lives of tens of thousands of people, who didn't have time to evacuate to higher ground. Now scientists are developing a technology that they say can predict a tsunami before a tsunami even starts.

Now, as never before, the systems that safeguard and give us life are in trouble. And that means we're in trouble. Deep sea explorer Sylvia Earle says that the natural world is showing signs of wear and tear - desperate signs in many cases.

NASA has announced plans to return to the moon and establish a human presence there. Read more about the inflatable lunar habitat being developed.

Joachim von Braun of the International Food Policy Research Institute in Washington, D.C. said that biofuel policies may lead to higher food prices.

What fish is on your plate? Turns out that 25 percent of the time, it's not the fish you thought you had bought. Read more about this study here.

Scientists have linked car exhaust with higher risk of heart disease. That's according to a study led by research toxicologist John Incardona that started with fish.

Adventures in ecotourism: My trip to Cusco, Peru. Read about the Manu jungle and whether the ecotourism industry in Peru is really eco-friendly.

"Animals are just so there in the moment, perhaps their joy is richer than human joy and their grief is deeper than human grief." said Mark Bekoff, evolutionary biologist at University of Colorado. Bekoff talked to EarthSky about animal joy and animal sorrow.

Recent weeks brought news that there are a lot more western lowland gorillas than we thought and that humpback whale populations are rebounding.

In a first for the U.S., shipping lanes have been moved to avoid collisions with whales. Hear David Wiley on how to save whales by moving shipping lanes.