Why America Needs Nuclear Energy

Question: How would nuclear power work on a large scale?

James Hansen: Well, nuclear power -- the kind of nuclear power we have now is called second-generation nuclear power. It's comparable in cost to coal. Once you have the nuclear power plant, then the fuel is very inexpensive, so nuclear power is quite inexpensive. But it's difficult in the United States to get a nuclear power plant built, and it takes so many years that it drives the cost up. So now in England they've realized that they will need to have nuclear power in the future, so they've put a limit -- once a government commission decides on where the power plants will be built, the public will have one year to object to this and possibly get some changes. But they can't drag it out six or seven years, the way it happens in the United States, because that drives up the price tremendously.

And there's also the possibility for fourth-generation nuclear power. That's a technology which allows you to burn all of the nuclear fuel. Presently, nuclear power plants burn less than 1 percent of the energy in the nuclear fuel. Fourth-generation nuclear power allows the neutrons to move faster, so it can burn all of the fuel. Furthermore, it can burn nuclear waste, so it can solve the nuclear waste problem. And the United States is still the technology leader in fourth-generation nuclear power. In 1994, Argonne National Laboratory, now called Idaho National Laboratory, was ready to build a fourth-generation nuclear power plant, but the Clinton-Gore administration canceled that research because of the antinuclear sentiments in the Democratic Party. Well, we still have the best expertise in that technology, and we should develop it because it's something we could also sell to China and India, because they're going to need nuclear power. They are not going to be able to get all of their energy from the sun and from the wind.

Question: What is the most effective approach to alternative energy?

James Hansen: Well, the most effective one is energy efficiency. We waste a lot of our energy. We can get vehicles that get more miles per gallon. There are many ways to improve energy efficiency. In fact, some states are twice as efficient as other states, just because -- fossil fuels were so cheap we just didn't pay attention to how effectively we were using them. But in addition, there are renewable energies: solar energy, wind energy. And I think that nuclear power has to be part of the solution, because at this time it's the only alternative to coal for base-load electrical power. And we do now have the technology for much safer and more efficient nuclear power, as compared to the old versions that were used in the past several decades.

The head of NASA’s Goddard Institute explains fourth generation nuclear power, and harnessing this technology will be pivotal for America’s future.

LinkedIn meets Tinder in this mindful networking app

Swipe right to make the connections that could change your career.

Getty Images
Sponsored
Swipe right. Match. Meet over coffee or set up a call.

No, we aren't talking about Tinder. Introducing Shapr, a free app that helps people with synergistic professional goals and skill sets easily meet and collaborate.

Keep reading Show less

Can the keto diet help treat depression? Here’s what the science says so far

A growing body of research shows promising signs that the keto diet might be able to improve mental health.

Public Domain
Mind & Brain
  • The keto diet is known to be an effective tool for weight loss, however its effects on mental health remain largely unclear.
  • Recent studies suggests that the keto diet might be an effective tool for treating depression, and clearing up so-called "brain fog," though scientists caution more research is necessary before it can be recommended as a treatment.
  • Any experiments with the keto diet are best done in conjunction with a doctor, considering some people face problems when transitioning to the low-carb diet.
Keep reading Show less
Promotional photo of Lena Headey as Cersei Lannister on Game of Thrones
Surprising Science
  • It's commonly thought that the suppression of female sexuality is perpetuated by either men or women.
  • In a new study, researchers used economics games to observe how both genders treat sexually-available women.
  • The results suggests that both sexes punish female promiscuity, though for different reasons and different levels of intensity.
Keep reading Show less

Want to age gracefully? A new study says live meaningfully

Thinking your life is worthwhile is correlated with a variety of positive outcomes.

YOSHIKAZU TSUNO/AFP/Getty Images
Surprising Science
  • A new study finds that adults who feel their lives are meaningful have better health and life outcomes.
  • Adults who felt their lives were worthwhile tended to be more social and had healthier habits.
  • The findings could be used to help improve the health of older adults.
Keep reading Show less