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

This is the moment when we must come together to save this planet. Let us resolve that we will not leave our children a world where the oceans rise and famine spreads and terrible storms devastate our lands.

When you see a rattlesnake poised to strike, you do not wait until he has struck to crush him.

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.

If we must not act save on a certainty, we ought not to act on religion, for it is not certain. But how many things we do on an uncertainty, sea voyages, battles!

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

We’ve gotta become the Martians. I’m a Martian – I tell you to become Martians. And we’ve gotta go to Mars and civilize Mars and build a whole civilization on Mars and then move out, 300 years from now into the universe. And when we do that, we have a chance of living forever.

It is a no-fail, incontrovertible reality: If you get, give. If you learn, teach. You can’t do anything with that except do it.

Act, and God will act.

It’s not worth doing something unless you were doing something that someone, somewere, would much rather you weren’t doing.

How inappropriate to call this planet Earth when it is quite clearly Ocean.

I want you to panic. I want you to feel the fear I feel every day. And then I want you to act.

Effective action is always unjust.

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.

Both the man of science and the man of action live always at the edge of mystery, surrounded by it.

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

The possibilities are numerous once we decide to act and not react.

All of us have been trained by education and environment to seek personal gain and security and to fight for ourselves. Though we cover it over with pleasant phrases, we have been educated for various professions within a system which is based on exploitation and acquisitive fear.

Life is to be lived. If you have to support yourself, you had bloody well better find some way that is going to be interesting. And you don’t do that by sitting around.

An ounce of action is worth a ton of theory.

Men’s actions are too strong for them. Show me a man who has acted, and who has not been the victim and slave of his action.

Chemistry can be a good and bad thing. Chemistry is good when you make love with it. Chemistry is bad when you make crack with it.

The great end of life is not knowledge but action.

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.

Some scientists believe climate change is the cause of unprecedented melting of the North Pole, and that effects these very uncertain weather patterns. I think we should listen to those scientists and experts.

Human beings must have action; and they will make it if they cannot find it.

I started in action, and then I went to comedy school.

Knowing is not enough; we must apply. Willing is not enough; we must do.

Loving people live in a loving world. Hostile people live in a hostile world. Same world.

Thought and theory must precede all salutary action; yet action is nobler in itself than either thought or theory.

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.

Earth might one day soon resemble the planet Venus.

It felt like I was the only one who cared about the climate and the ecological crisis. My parents didn’t care about it, my classmates didn’t care about it, my relatives didn’t care about this. I mean nobody I knew cared about this and I felt like I was the only one.

To make a prairie it takes a clover and one bee, One clover, and a bee, And revery. The revery alone will do, If bees are few.

If future generations are to remember us more with gratitude than sorrow, we must achieve more than just the miracles of technology. We must also leave them a glimpse of the world as it was created, not just as it looked when we got through with it.

It is hard sometimes to always be at the centre of attention, but when you talk about me you also have to talk about the climate.

It’s not as though we can keep burning coal in our power plants. Coal is a finite resource, too. We must find alternatives, and it’s a better idea to find alternatives sooner then wait until we run out of coal, and in the meantime, put God knows how many trillions of tons of CO2 that used to be buried underground into the atmosphere.

Emotion creates reality, reality demands action.

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

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?

First, how do we give everyone a fair shot at opportunity and security in this new economy? Second, how do we make technology work for us, and not against us – especially when it comes to solving urgent challenges like climate change? Third, how do we keep America safe and lead the world without becoming its policeman?

There are thousands of ways to take action. For example, plant trees, pick up litter, join an organisation or movement that makes a difference and especially try to influence adults and put pressure on people in power.

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.

Justice is truth in action.

Federalism is no longer the fault line of Centre-State relations but the definition of a new partnership of Team India. Citizens now have the ease of trust, not the burden of proof and process. Businesses find an environment that is open and easy to work in.

Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill.

Even if the economy crashes, we will still burn oil.

I just think cities are unnatural, basically. I know there are people who live happily in them, and I have cities that I love, too. But it’s a disaster that we have moved so far from nature.

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

Many people say that this is not an easy issue, we cannot just say that this is how it is, it’s not black and white. But I say that this is black and white. Either we stop the emissions or we don’t. There are no gray areas when it comes to survival.

Nature knows no pause in progress and development, and attaches her curse on all inaction.

There is a sufficiency in the world for man’s need but not for man’s greed.

What you don’t do can be a destructive force.

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.

It’s so much easier to pray for a bore than to go and see one.

When I prepare, I am not messing around. I find the right places, the right people, and the right environment. Iceland is one of those places.

What is a farm but a mute gospel?

The wise man does at once what the fool does finally.

Be wary of the man who urges an action in which he himself incurs no risk.

Shall I not have intelligence with the earth? Am I not partly leaves and vegetable mould myself.

While some doubted that connecting the world was actually important, we were building. While others doubted that this would be sustainable, you were forming lasting connections. We just cared more about connecting the world than anyone else. And we still do today.