Hear That? Annoying Hum Has Canada Making Noise

The residents of Windsor, Ontario, say they're being invaded by an irritating sound that's emanating from outside Detroit. It's known as the "Windsor Hum" and, with U.S. officials claiming Americans can't hear it, no one seems to know who should be in charge of shutting it up. - READ MORE

'Frankenfish': It's What's For Dinner

Snakeheads came to Maryland almost 10 years ago. More people are acquiring a taste for the fish, some to help curb the invasive species' population. But they're kind of pricey. Plus, they're called "snakeheads" and look like Jacques Cousteau's nightmares. So a lot of them are still swimming around. - READ MORE

Iraq's Oil Boom And The Global Market

In a remarkable shift, Iraq's oil exports jumped by 20 percent since January, and the country exported more oil in April than in any month since Saddam Hussein invaded Kuwait in 1990. Energy expert Daniel Yergin discusses how Iraq's oil wealth is driving the Iraqi economy and reshaping the global oil market. - READ MORE

Drilling Boom Strains State Regulatory Agencies

Cash-strapped states are embracing the millions of dollars in new tax revenue coming from shale oil and gas development. But there aren't enough inspectors to make sure the sites aren't polluting. The problem seems especially apparent in Colorado, which now has more than 47,000 active oil and gas wells but the state employs just 17 inspectors. - READ MORE

Fracking: New Rules Aim To Bring 'Best Practices' To Public Lands

Among the proposals: Requiring companies that are extracting natural gas to disclose the chemicals they use. - READ MORE

Gauging Public Opinion on Climate Change Policy

Majorities of Americans say that global warming and clean energy should be among the nation's priorities, according to a new survey. Will those feelings translate into any action in the government? Anthony Leiserowitz of the Yale Project on Climate Change Communication discusses the survey's findings. - READ MORE

Is Thorium A Magic Bullet For Our Energy Problems?

As the search for cheap, safe and non-carbon emitting sources of energy continues, a band of scientists say the answer may be nuclear reactors fueled by thorium. Others caution that thorium reactors pose waste and proliferation risks. Ira Flatow and guests discuss the pros and cons of thorium reactors. - READ MORE

Greenland's Ice Melting Slower Than Expected

While the glaciers hold enough water to raise sea level feet by 20 feet, a new study says the runaway meltdown of Greenland's ice isn't happening as some had feared. This means a "worst case scenario" of six feet of sea level rise by the end of this century is unlikely, a polar researcher says. - READ MORE

Koalas Are So Cute! (And Threatened)

According to National Geographic, and now the Australian government, the country's cutest symbol is at risk. - READ MORE

Drama Amid Indonesia's Disappearing Mangroves

Indonesia has the largest share of the world's mangroves, coastal forests that have adapted to saltwater environments. They play important environmental and ecological roles. The challenge is convincing locals that they benefit more from protecting the trees rather than cutting them down. - READ MORE