Quotes About Sustainability

la estrategia más eficaz para luchar contra el cambio climático consiste en dejar de talar tantos árboles que ya existen.

For the most part, you can get trees to grow only in places where they've already grown, so planting them could help undo the damage caused by deforestation. But there's no practical way to plant enough of them to deal with the problems caused by burning fossil fuels. The most effective tree-related strategy for climate change is to stop cutting down so many of the trees we already have.

that a lot? Over the past decade, we've added an average of 22 gigawatts a year. Now we need to install more than three times that much each year, and keep up the pace for the next three decades.

Another, more theoretical approach involves making cement out of seawater and the carbon dioxide captured from power plants. The inventors behind this idea think it could ultimately cut emissions by more than 70 percent.

The most effective tree-related strategy for climate change is to stop cutting down so many of the trees we already have.

The Green Premiums answer these questions, measuring the cost of getting to zero, sector by sector, and highlighting where we need to innovate

I didn't think it was fair for anyone to tell Indians that their children couldn't have lights to study by, or that thousands of Indians should die in heat waves because installing air conditioners is bad for the environment. The only solution I could imagine was to make clean energy so cheap that every country would choose it over fossil fuels.

The reason the world emits so much greenhouse gas is that—as long as you ignore the long-term damage they do—our current energy technologies are by and large the cheapest ones available. So moving our immense energy economy from "dirty," carbon-emitting technologies to ones with zero emissions will cost something.

The Gates Foundation's whole approach to saving lives is based on the idea that we need to be pushing innovation for the poor while also increasing demand for it.

TerraPower's

The world needs to provide more energy so the poorest can thrive, but we need to provide that energy without releasing any more greenhouse gases.

fission, carbon capture and sequestration, offshore wind, cellulosic ethanol (a type of advanced biofuel), and meat alternatives.

Consider that the first Model T that rolled off Henry Ford's production line in 1908 got no better than 21 miles to the gallon. As I write this, the top hybrid on the market gets 58 miles to the gallon. In more than a century, fuel economy has improved by less than a factor of three.

Besides, making electricity accounts for only 27 percent of all greenhouse gas emissions. Even if we had a huge breakthrough in batteries, we would still need to get rid of the other 73 percent.

I didn't think it was fair for anyone to tell Indians that their children couldn't have lights to study by, or that thousands of Indians should die in heat waves because installing air conditioners is bad for the environment.

How much greenhouse gas is emitted by the things we do? Making things (cement, steel, plastic) 31% Plugging in (electricity) 27% Growing things (plants, animals) 19% Getting around (planes, trucks, cargo ships) 16% Keeping warm and cool (heating, cooling, refrigeration) 7%

How much power does it take? The world 5,000 gigawatts The United States 1,000 gigawatts Mid-size city 1 gigawatt Small town 1 megawatt Average American house 1 kilowatt

If you could pick just one thing to lower the price of, to reduce poverty, by far you would pick energy.

Nuclear fusion. There's another, entirely different approach to nuclear power that's quite promising but still at least a decade away from supplying electricity to consumers. Instead of getting energy by splitting atoms apart, as fission does, it involves pushing them together, or fusing them.

The typical Kenyan produces 55 times less carbon dioxide than an American, and rural farmers like the Talams produce even less.

Power density is the relevant number here. It tells you how much power you can get from different sources for a given amount of land (or water, if you're putting wind turbines in the ocean). It's measured in watts per square meter. Below

In Indonesia, on the other hand, forests are being cut down to make way for palm trees, which provide the palm oil you'll find in everything from movie-theater popcorn to shampoo. It's one of the main reasons why the country is the world's fourth-largest emitter of greenhouse gases.

If you want to do business with us, you'll have to take climate change seriously.

The average retail price for a gallon of jet fuel in the United States over the past few years is $2.22. Advanced biofuels for jets, to the extent they're available, cost on average $5.35 per gallon. The Green Premium for zero-carbon fuel, then, is the difference between these two prices, which is $3.13.