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Stories by Matthew L. Wald

World Changing Ideas 2010

Ten thoughts, trends and technologies that have the power to transform our lives

December 1, 2010 — THE EDITORS, John Pavlus, Tom Vanderbilt, Elizabeth Svoboda, Melinda Wenner Moyer and Matthew L. Wald

Gas from Trash

Modified microbes eat waste and secrete fuel

December 1, 2010 — Matthew L. Wald

How to Build the Supergrid

The U.S. needs a new electric transmission system to deliver cleaner, more reliable power nationwide. Four steps could clear hurdles

November 10, 2010 — Matthew L. Wald

Is There a Place for Nuclear Waste?

Yucca Mountain was supposed to be the answer to the U.S.'s nuclear waste problem, but after 22 years and $9 billion, that vision is dead. Now, some say that doing nothing in the near term may be the smartest solution

August 1, 2009 — Matthew L. Wald

Dismantling Nuclear Reactors

Taking apart a nuclear power plant that has reached the end of its life is a complicated task. But not for the reasons you might expect

January 26, 2009 — Matthew L. Wald

Can Nuclear Power Compete?

Newly approved reactor designs could reduce global warming and fossil-fuel dependence, but utilities are grappling with whether better nukes make market sense

December 1, 2008 — Matthew L. Wald

Is Ethanol for the Long Haul?

Ethanol could displace gasoline, but it won't pay off until we find a way to distill cornstalks, not corn

January 1, 2007 — Matthew L. Wald

Questions about a Hydrogen Economy

Much excitement surrounds the progress in fuel cells, but the quest for a hydrogen economy is no trivial pursuit

May 1, 2004 — Matthew L. Wald

Dismantling Nuclear Reactors

Taking apart a nuclear power plant that has reached the end of its life is a complicated task. But not for the reasons you might expect

February 10, 2003 — Matthew L. Wald