TBP Solar and wind, Jim and I agreed on that in 13 seconds.

So and then when you compare the lifetime emissions of these various energy forms, nuclear is about even with solar and wind, and ahead of solar oh, I'm sorry with hydro and wind, and ahead of solar.

YB So, wind power, solar power we had a lot to talk about.

Wind and solar can't help, because so far we don't have a way to store that energy.

It's supposed to be, I don't know, local solar and wind and cogeneration, and good things like that.

Wind takes about two to five years on average, same as concentrated solar and photovoltaics.

And if you look, wind and concentrated solar have the lowest CO2 emissions, if you look at the graph.

MJ So we've analyzed the hour by hour power demand and supply, looking at solar, wind, using data for California.

But one of the things we're discovering is that wind, like solar, is an actually relatively dilute source of energy.

So when somebody says, Let's go more nuclear, let's go wind, let's go solar, fine I'm for anything American, anything American.

I would love to have something in the fourth place here, but in terms of constant, clean, scalable energy, solar and wind and the other renewables aren't there yet because they're inconstant.

And the chart here shows the difference between the emissions from the regular grid, resulting if you use nuclear, or anything else, versus wind, CSP or photovoltaics.

Obama also mentioned that he had raised fuel economy standards for cars in the US, and had invested in renewable energy sources, like solar and wind power.

It could be something like a wind farm.

TBP I lost 150 million on the wind, okay.

The wind transports dust and other particles which erodes the relief and leaves deposits (eolian processes).

So when you add up the greenhouse gases in the lifetime of these various energy sources, nuclear is down there with wind and hydro, below solar and way below, obviously, all the fossil fuels.

Europe and Canada pledged 10 billion toward an ambitious project called the Africa Renewable Energy Initiative, which aims to install ten gigawatts of solar, wind, and geothermal capacity by the end of the decade.

Even without active incentives, McKinsey predicts more than 25 percent of total energy across Africa in 2040 will come from clean sources such as geothermal, hydro, solar and wind. The IEA projects solar energy will power mini grid and off grid systems in rural areas in the region by 2040, and account for more than 30 percent of capacity additions between 2030 and 2040. South Africa aptly demonstrates what could be the beginning of a subtle shift in this direction.

So my premise here is that nuclear energy puts out more carbon dioxide, puts out more air pollutants, enhances mortality more and takes longer to put up than real renewable energy systems, namely wind, solar, geothermal power, hydro tidal wave power.

Such processes could include water or wind erosion, sedimentation, hydrothermal mechanisms, volcanism, and cratering.

When you add all these things up Saul Griffith did the numbers and figured out what would it take to get 13 clean terawatts of energy from wind, solar and biofuels, and that area would be roughly the size of the United States, an area he refers to as Renewistan.

For wind, there's a larger area, but much smaller footprint.

Wind energy Wind energy is the kinetic energy of air in motion, also called wind.

Solar can do it, and we certainly have to develop solar.

It's a longer payback than mountaintop removal, but the wind energy actually pays back forever.

Now if we go to the area, lots is worse than nuclear or wind.

A number of initiatives are working to reduce costs of electricity from offshore wind.

The ionosphere is mainly sustained by solar UV radiation and its density depends on the solar activity.

And at the time I went into the wind business, natural gas was nine dollars.

And one last slide I just want to show. This is the choice You can either have wind or nuclear.

Skylab made the first time resolved observations of the solar transition region and of ultraviolet emissions from the solar corona.

Solar energy is radiant light and heat from the sun harnessed using a range of ever evolving technologies such as solar heating, solar photovoltaics, solar thermal energy, solar architecture and artificial photosynthesis.

Put on some sunscreen.

And that could be the basis of a sunscreen because sunscreens work by absorbing ultraviolet light.

Plants need water and sunlight.

Our exploration of the solar system has taught us that the solar system is beautiful.

Yes, it will take a solar panel. Yes a solar panel will charge it.

Solar eclipse As observed from the Earth, a solar eclipse occurs when the Moon passes in front of the Sun.

Denmark's electricity sector has integrated energy sources such as wind power into the national grid.

And of course, with wind, you could put it all over the East Coast, offshore theoretically, or you can split it up.

Tom put on some sunscreen.

Do you have any sunscreen?

Do you have any sunscreen?

Did you put on some sunscreen?