David Cameron Quotes

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.

For the sake of our children and our future, we must do more to combat climate change. Now, it's true that no single event makes a trend. But the fact is the 12 hottest years on record have all come in the last 15. Heat waves, droughts, wildfires, floods-all are now more frequent and more intense. We can choose to believe that Superstorm Sandy, and the most severe drought in decades, and the worst wildfires some states have ever seen were all just a freak coincidence. Or we can choose to believe in the overwhelming judgment of science-and act before it's too late.

Climate change...is, simply, the greatest collective challenge we face as a human family.

We face a climate crisis now that is the most serious challenge our civilization has ever confronted. And the greatest country in the world [America] has to remain a part of this unprecedented global agreement to deal with it.

[Fighting Climate Change] is important for every single person on the planet, which is why it has to be the greatest grassroots movement of all time. This is the battle of our lives. We're fighting for our children.

I believe that climate change is the great global crisis that we face, environmental crisis. I believe that if you're serious about climate change, you don't encourage the excavation and transportation of very dirty oil.

Confronting climate change is, in the long run, one of the greatest challenges that we face, and you can see this duty or responsibility laid down in scriptures, clearly.

Climate change is real. The science is compelling. And the longer we wait, the harder the problem will be to solve.

Tackling climate change is a collective endeavour, it means collective accountability and it's not too late

We face the gravest threat that civilization has ever confronted. It's global in nature and requires a global solution. Increased CO2 emissions anywhere, whether from China or the United States or from one of the countries that is burning its forests like Brazil or Indonesia.

The issue of climate change is one that we ignore at our own peril

... the consensus of the scientific community has shifted from skepticism to near-unanimous acceptance of the evidence of an artificial greenhouse effect. Second, while artificial climate change may have some beneficial effects, the odds are we're not going to like it. Third, reducing emissions of greenhouse gases may turn out to be much more practical and affordable than currently assumed.

Climate change is a real deal. So, hey deniers - cut it out, and let's get to work.

Climate change: Never before in history have human beings been called on to act collectively in defence of the Earth

We will respond to the threat of climate change, knowing that the failure to do so would betray our children and future generations

Climate change: I say the debate is over. We know the science, we see the threat and we know that the time for action is now

No challenge poses a greater threat to future generations than climate change.

Unless we act boldly and quickly to deal with the underlying causes of global warming, our world will undergo a string of terrible catastrophes.

I am interested in climate change and other topics too. But this thing is so huge, in the worst case we are talking about the end of our civilization.

The most profound security threat we face today is global warming....climate change has the capacity to change the way all of us live.

The scientific evidence is now overwhelming: climate change presents very serious global risks, and it demands an urgent global response.

Climate change is real. In order to alter this reality, we need all hands on deck.

All of us living in today's world are facing an enormous crisis - arguably the greatest that humanity has ever faced - in the form of man-made global warming; one can't be neutral at such a moment. It's like claiming to be neutral if you're living in Germany in 1933.

Climate change has happened because of human behaviour, therefore it’s only natural it should be us, human beings, to address this issue. It may not be too late if we take decisive actions today.

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