Podcasts offer a great way to stay current on issues and learn new things. Whether you’re driving, working out or just relaxing, you can try various types of podcasts to see what matches your interests.

If you care about a greener future, then check out these 14 green podcasts recommended by GreenBiz.com.

The amount of food wasted is staggering. Just consider how much good food is thrown away at places like restaurants, arenas, banquet halls, etc. Much of this food is high quality food, but invariably there will be more food cooked than is needed. And then it’s generally thrown away.

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Water has always been an issue in California, with competing interests from farmers, ranchers, fishermen and growing cities. But with the crippling drought that the state has experienced in recent years, all of these issues and battles are becoming more important. Unfortunately, with climate change, we may see more of these issues playing out around the world.

This article offers a compelling overview of the water issues facing California.

Here’s an excellent interview with Tony Fadell of Nest where he discussed the ways Nest can help consumers save energy. Even more interesting is how Nest is being paid by electric power companies to help smooth out power spikes.

Kevin Rose does an excellent job with the interview and it’s worth checking out. They discuss a wide variety of topics including outsourcing to China, Kickstarter and other challenges facing hardware startups. You can follow Fadell on Twitter here.

Nest makes a learning thermostat that helps you conserve energy. It learns your lifestyle and adjusts the temperature in a room based on your needs. If you’re not there or you’re sleeping, Nest automatically changes the temperature settings. You can also control it from a variety of devices. It’s part of the new “Internet of Things” movement where everyday devices become “smarter” by being connected to the Internet, your smartphone and other devices.

Nest was founded by Tony Fadell, one of the Apple guys who worked on the original iPod, and now it’s been acquired by Google for a whopping $3.2 billion. This article sums up the transaction and offers some insight on the future of this company and products like the thermostat that we’ll be able to control in the future.