There are no passengers on Spaceship Earth. We are all crew.
Marshall McLuhan, 1964

The urgency derives from the nearness of climate tipping points.
Dr. James Hansen, scientist, Preface of Storms of My Grandchildren, Dec. 2009

I’m no longer sceptical. I no longer have any doubt at all. I think climate change is the major challenge facing the world.
Sir David Attenborough

We have found that material possessions don't provide as much enduring happiness as the pursuit of life experiences.
Psychology Professor Leaf Van Boven, University of Colorado at Boulder, April 2010

First, I worry about climate change. It's the only thing that I believe has the power to fundamentally end the march of civilization as we know it, and make a lot of the other efforts that we're making irrelevant and impossible.
Bill Clinton

Climate change is the most severe problem that we are facing today, more serious even than the threat of terrorism.
David King

Everything lost can be found, except for time wasted.

We have to face the reality of climate change. It is arguably the biggest threat we are facing today.
William Hague

Denmark and the UK are in agreement that our future prosperity depends on stimulating green growth, and getting off the oil hook.
Joint statement by Chris Huhne, UK Secretary of State for Energy and Climate Change, and Dr. Lykke Friis, Danish Minister for Climate and Energy, Februar 2011

Many governments are giving subsidies to fossil fuel production and consumption that encourage greenhouse gas emissions, at the same time as they are spending on projects to promote clean energy. This is a wasteful use of scarce budget resources.
Angel Gurría

We've got to find another way of producing energy.
Larry Hagman, July 2010

The truth is that the overwhelming majority of species on this planet – including our own – are utterly dependent on the complicated systems that Nature has provided, and we ignore this reality at our absolute peril.
HRH The Prince of Wales to the "Deal or No Deal" Corporate Leaders Group on Climate Change Conferences, July 2010

For me, solving the climate-change challenge is not as simple as “cutting CO2”. It is global, it is multi-faceted and it is inter-related with unresolved challenges spanning right across the international discourse – from trade and poverty reduction, to food security and environmental degradation
HRH The Prince of Wales to the "Deal or No Deal" Corporate Leaders Group on Climate Change Conferences, July 2010

Ending fuel subsidies could cut greenhouse gas emissions 10%.
OECD analysis, June 2010

Earth is crammed with heaven and every bush aflame with God. But only those who see take off their shoes.
Elizabeth Barrett Browning

Even without taking into account uncertainties over future carbon absorption we are heading for a rapid increase in greenhouse gas stock accumulation. In effect, we are opening the taps to increase the fl ow of water into an already overfl owing bath. Th e overfl ow is refl ected in the rate at which CO2 is entering and being locked into the Earth’s atmosphere.
Human Development Report , 2007/08

The power of choosing good and evil is within the reach of all.

Climate change is a global commons problem.
Ottmar Edenhofer, April 2014

To know and to not act is to not know.
Yang Wan Ming

The world is taking steps towards facing the existential challenge to survival, meanwhile the US, virtually alone, is racing towards destruction with enthusiasm & dedication.
Noam Chomsky, Biologist, Climate Change Speech, 2017

The most important thing you can do to fight climate change: talk about it.
Katherine Hayhoe, Canadian Climate scientist, 2018

If we emit carbon, we’ll have to do something to capture it and we’ll have to include these costs in the price of energy.
Dr. Wallace S. Broecker, February 2014

If we continue releasing CO2 into the air, we’re doing something stupid.
Dr. Wallace S. Broecker, February 2014

There’s something astronomers use called the Drake equation, and that asks, “What is the probability that there is a planet out there that we could communicate with that has intelligent life?” And the biggest uncertainty in that has nothing to do with astronomy. It has to do with the lifetime of a civilization. How long does it take it to destroy itself? So if you have intelligent thing for a thousand years, the chances we’ll have to communicate with another planet, on the timescale of billions of years, it becomes almost certainly not possible.
Dr. Wallace S. Broecker, July 2017

I don’t know how long it’s going to be before people really wake up. I suspect we’re going to have to wait until the impacts grow larger.
Dr. Wallace S. Broecker, August 2010

German Chancellor Angela Merkel, whose political future is not very clear, is the only world leader who’s really been able to do anything.
Dr. Wallace S. Broecker, August 2010

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