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 have seen firsthand that agricultural science has enormous potential to increase the yields of small farmers and lift them out of hunger and poverty.

Treatment without prevention is simply unsustainable.

Economists treat economics as if it is a pure science divorced from the facts of life. The result of this false accountancy is a willful confusion under cover of which industry wreaks its havoc scot-free and ignores the environmental cost.

People are unaware of what is going on. When I talk to people, they know the basics, they know the planet is warming because of greenhouse gases… but they don’t know the actual consequence of that.

The environment is everything that isn’t me.

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

Can you imagine what a different world we will live in when businesses do what’s right for the communities and the environment in everything they do?

We can’t just continue living as if there was no tomorrow, because there is a tomorrow.

I talk to fashion designers and say I want some money to save the rainforest, and they say, ‚Oh, I agree with you completely Vivienne. Yes, climate change, it’s definitely happening,‘ but they don’t feel that they can do anything about it; they don’t even think ‚Well let’s stop it!‘

Well, capitalism is a big problem, because with capitalism you’re just going to keep buying and selling things until there’s nothing else to buy and sell, which means gobbling up the planet.

Nothing is being done to stop the climate and ecological emergency from happening and to secure the future wellbeing for future generations.

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

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

By the time we see that climate change is really bad, your ability to fix it is extremely limited… The carbon gets up there, but the heating effect is delayed. And then the effect of that heat on the species and ecosystem is delayed. That means that even when you turn virtuous, things are actually going to get worse for quite a while.

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.

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

More businesses should be following Apple’s stance in encouraging more investment in sustainability.

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

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.

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

Without electricity, the air would rot.

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.

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.

The world, we are told, was made especially for man – a presumption not supported by all the facts. A numerous class of men are painfully astonished whenever they find anything, living or dead, in all God’s universe, which they cannot eat or render in some way what they call useful to themselves.

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

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.

Many people, especially in the U.S., see countries like Sweden or Norway or Finland as role models – we have such a clean energy sector, and so on. That may be true, but we are not role models.

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.

Someone is sitting in the shade today because someone planted a tree a long time ago.

The reason we should do a carbon tax is because it’s the right thing to do. It’s economics 101, elementary stuff.

We must get rid of fossil fuels by developing injection systems for automobiles, which can run on bio-fuel.

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.

The future is green energy, sustainability, renewable energy.

By stopping flying, you don’t only reduce your own carbon footprint but also that sends a signal to other people around you that the climate crisis is a real thing and that helps push a political movement.

Evolution can go to hell as far as I am concerned. What a mistake we are. We have mortally wounded this sweet life-supporting planet – the only one in the whole Milky Way – with a century of transportation whoopee.

Thanks to my mother, not a single cardboard box has found its way back into society. We receive gifts in boxes from stores that went out of business twenty years ago.

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.

In energy, you have to plan and do research way in advance, sometimes decades in advance to get a new system that’s safer, doesn’t require us to go around the world to get all our oil.

It is good to realize that if love and peace can prevail on earth, and if we can teach our children to honor nature’s gifts, the joys and beauties of the outdoors will be here forever.

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.

If you don’t have sustainable energy, you have unsustainable energy. The fundamental value of a company like Tesla is the degree to which it accelerates the advent of sustainable energy faster than it would otherwise occur.

When we build, let us think that we build for ever.

We can’t drive our SUVs and eat as much as we want and keep our homes on 72 degrees at all times… and then just expect that other countries are going to say OK. That’s not leadership. That’s not going to happen.

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

Indians walk softly and hurt the landscape hardly more than the birds and squirrels, and their brush and bark huts last hardly longer than those of wood rats, while their more enduring monuments, excepting those wrought on the forests by the fires they made to improve their hunting grounds, vanish in a few centuries.

The main message we want to get out there is that climate change is caused by the rotten economic system.

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.

Avoiding climate breakdown will require cathedral thinking. We must lay the foundation while we may not know exactly how to build the ceiling.

We’re running the most dangerous experiment in history right now, which is to see how much carbon dioxide the atmosphere… can handle before there is an environmental catastrophe.

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.

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.

Taking bold action on climate change simply makes good business sense. It’s also the right thing to do for people and the planet. Setting a net-zero GHG emissions target by 2050 will drive innovation, grow jobs, build prosperity, and secure a better world for what will soon be 9 billion people.

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.

We need to keep making our streets safer and our criminal justice system fairer – our homeland more secure, our world more peaceful and sustainable for the next generation.

My message is that if we do not care about the climate crisis and if we do not act now then almost no other question is going to matter in the future.

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

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.

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.

Biofuels such as ethanol require enormous amounts of cropland and end up displacing either food crops or natural wilderness, neither of which is good.

I don’t use any animal products, both because of ethical and environmental and climate reasons.