We are at a time in history where everyone with any insight of the climate crisis that threatens our civilisation – and the entire biosphere – must speak out in clear language, no matter how uncomfortable and unprofitable that may be.

I remember when I was younger, and in school, our teachers showed us films of plastic in the ocean, starving polar bears and so on. I cried through all the movies. My classmates were concerned when they watched the film, but when it stopped, they started thinking about other things. I couldn’t do that. Those pictures were stuck in my head.

I’ve actually made a prediction that within 30 years a majority of new cars made in the United States will be electric. And I don’t mean hybrid, I mean fully electric.

The environmentalists say capitalism is killing our oceans, air, land, and forests. Capitalists argue that they provide food, fuel, and building materials for a growing world.

When I was maybe eight or nine years old, I first learned about the climate crisis in school. My teachers taught me about it and we saw films and pictures of plastic in the ocean and extreme weather events. Those pictures were just stuck in my head; I thought, there is no point in anything.

The nuclear approach I’m involved in is called a traveling-wave reactor, which uses waste uranium for fuel. There’s a lot of things that have to go right for that dream to come true – many decades of building demo plants, proving the economics are right. But if it does, you could have cheaper energy with no CO2 emissions.

Climate change is a terrible problem, and it absolutely needs to be solved. It deserves to be a huge priority.

We have to rethink our whole energy approach, which is hard to do because we’re so dependent on oil, not just for fuel but also plastic. If plastic vanished, there would be total chaos. We have to think quite carefully about using oil and its derivatives, because it’s not going to be around forever.

Today, we’re very dependent on cheap energy. We just take it for granted – all the things you have in the house, the way industry works.

I just think people should invest in the world. Don’t invest in fashion, but invest in the world.

Here at this site, Solyndra expects to make enough solar panels each year to generate 500 megawatts of electricity. And over the lifetime of this expanded facility, that could be like replacing as many as eight coal-fired power plants.

A life of stasis would be population control, combined with energy rationing. That is the stasis world that you live in if you stay. And even with improvements in efficiency, you’ll still have to ration energy. That, to me, doesn’t sound like a very exciting civilization for our grandchildren’s grandchildren to live in.

For 25 years countless people have come to the U.N. climate conferences begging our world leaders to stop emissions and clearly that has not worked as emissions are continuing to rise. So I will not beg the world leaders to care for our future. I will instead let them know change is coming whether they like it or not.

We should remember that there are nations which meet more than 30 to 60% of their power requirements through the nuclear power system.

The main message of Climate Revolution is that climate change is caused by the rotten financial system we’ve got, designed to create poverty and rip off any profits for a small amount of rich people. Meanwhile, it destroys the earth.

I have a company, and I’ve got to think about that. I’m trying to do my best there, and that’s a much harder task. We recycle as much as possible, and we conserve. But I’ve always been one to save everything – I even walk up stairs on the very inside or the very outside to not wear out the tread.

Gardening is not a rational act.

What is the use of a house if you haven’t got a tolerable planet to put it on?

Some people say that the climate crisis is something that we will have created, but that is not true, because if everyone is guilty then no one is to blame. And someone is to blame.

Every other civilized nation in the world has been compelled to care for its forests, and so must we if waste and destruction are not to go on to the bitter end, leaving America as barren as Palestine or Spain.

We have got to change our ethics and our financial system and our whole way of understanding the world. It has to be a world in which people live rather than die; a sustainable world. It could be great.

The Apollo program certainly had no real commercial value. It was done for very different reasons and, I think, very good reasons for the time. It’s an extraordinary achievement of mankind, but it wasn’t sustainable.

I think there are more politicians in favor of electric cars than against. There are still some that are against, and I think the reasoning for that varies depending on the person, but in some cases, they just don’t believe in climate change – they think oil will last forever.

If burning fossil fuels was so bad that it threatened our very existence, how could we just continue like before? Why were there no restrictions? Why wasn’t it made illegal? To me, that did not add up.

I’m glad to see that BMW is bringing an electric car to market. That’s cool.

The environment is everything that isn’t me.

Economy forced me to become a vegetarian, but I finally starting liking it.

I really do encourage other manufacturers to bring electric cars to market. It’s a good thing, and they need to bring it to market and keep iterating and improving and make better and better electric cars, and that’s what going to result in humanity achieving a sustainable transport future. I wish it was growing faster than it is.

There aren’t many things that are universally cool, and it’s cool not to litter. I’d never do it.

We could have saved the Earth but we were too damned cheap.

You should be attacking the carbon emissions, period, and whether it’s cap-and-trade or carbon tax or whatever, that’s the realm in which we should be playing.

Let us not be too particular; it is better to have old secondhand diamonds than none at all.

I have been on the road and visited numerous places and met people from all over the globe. I can say that it looks nearly the same everywhere I have been: The climate crisis is ignored by people in charge, despite the science being crystal clear.

Two out of every five people on Earth today owe their lives to the higher crop outputs that fertilizer has made possible.

There must be a reason why some people can afford to live well. They must have worked for it. I only feel angry when I see waste. When I see people throwing away things that we could use.

It’s obviously tricky to convert cellulose to a useful biofuel. I think actually the most efficient way to use cellulose is to burn it in a co-generation power plant. That will yield the most energy and that is something you can do today.

The effects of climate change are real and must be acted on.

The future is green energy, sustainability, renewable energy.

If anyone has a vested interest in space solar power, it would have to be me.

I’m a radical environmentalist; I think the sooner we asphyxiate in our own filth, the better. The world will do better without us. Maybe some fuzzy animals will go with us, but there’ll be plenty of other animals, and they’ll be back.

I’m not saying that people should stop flying. I’m just saying it needs to be easier to be climate neutral.

You need to live in a dome initially, but over time you could terraform Mars to look like Earth and eventually walk around outside without anything on… So it’s a fixer-upper of a planet.

We will have to leave this planet, and we’re going to leave it, and it’s going to make this planet better.

We need enlightenment, not just individually but collectively, to save the planet. We need to awaken ourselves. We need to practice mindfulness if we want to have a future, if we want to save ourselves and the planet.

The reality is gas prices should be much more expensive then they are because we’re not incorporating the true damage to the environment and the hidden costs of mining oil and transporting it to the U.S. Whenever you have an unpriced externality, you have a bit of a market failure, to the degree that eternality remains unpriced.

Every once in a while, I get mad. ‚The Lorax‘ came out of my being angry. The ecology books I’d read were dull… In ‚The Lorax,‘ I was out to attack what I think are evil things and let the chips fall where they might.

The shift to a cleaner energy economy wont happen overnight, and it will require tough choices along the way. But the debate is settled. Climate change is a fact.

For way too long the politicians and people in power have got away with not doing anything at all to fight the climate crisis and ecological crisis.

I threw my cup away when I saw a child drinking from his hands at the trough.

Innovations that are guided by smallholder farmers, adapted to local circumstances, and sustainable for the economy and environment will be necessary to ensure food security in the future.

I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.

To me, a leader is someone who holds her- or himself accountable for finding potential in people and processes. And so what I think is really important is sustainability.

The climate crisis is both the easiest and the hardest issue we have ever faced. The easiest because we know what we must do. We must stop the emissions of greenhouse gases. The hardest because our current economics are still totally dependent on burning fossil fuels, and thereby destroying ecosystems in order to create everlasting economic growth.

I resigned from the Marine Corps and flying in 1974, even though I loved them both. I quit because I no longer wanted to fight for peace. Instead, I believe we can build a more sustainable peace by working for prosperity.

The redwood is the glory of the Coast Range. It extends along the western slope, in a nearly continuous belt about ten miles wide, from beyond the Oregon boundary to the south of Santa Cruz, a distance of nearly four hundred miles, and in massive, sustained grandeur and closeness of growth surpasses all the other timber woods of the world.

Now, we put out a lot of carbon dioxide every year, over 26 billion tons. For each American, it’s about 20 tons. For people in poor countries, it’s less than one ton. It’s an average of about five tons for everyone on the planet. And, somehow, we have to make changes that will bring that down to zero.

We shouldn’t be saying ‚Save the planet‘; we should be saying: ‚Save viable conditions in which people can live.‘ That’s what we’re dealing with here.

Learning about climate change triggered my depression in the first place. But it was also what got me out of my depression, because there were things I could do to improve the situation. I don’t have time to be depressed anymore.

If a man walks in the woods for love of them half of each day, he is in danger of being regarded as a loafer. But if he spends his days as a speculator, shearing off those woods and making the earth bald before her time, he is deemed an industrious and enterprising citizen.

The situation the Earth is in today has been created by unmindful production and unmindful consumption. We consume to forget our worries and our anxieties. Tranquilising ourselves with over-consumption is not the way.

We are living in the beginning of a mass extinction and our climate is breaking down.