Climate change is for real. We have just a small window of opportunity and it is closing rather rapidly. There is not a moment to lose.

Stop worrying about the lousy science, and how me the money already.

Stop worrying about the lousy science, and how me the money already.

The IPCC doesn't do any research itself. We only develop our assessments on the basis of peer-reviewed literature.

Nobody on this planet is going to be untouched by the impacts of climate change.

The impact of climate change will fall disproportionately upon developing countries and the poor persons within all countries. It will therefore exacerbate inequalities in health status and access to adequate food, clean water and other resources.

We have embarked globally on a path of unsustainable development. Our lifestyles, the way we produce goods and services, are all part of a system that is completely unsustainable. I see solutions to climate change leading to a much larger philosophical shift in the way human society develops. We need a new matrix to define what human progress is.

There is, even today, a Flat Earth Society that meets every year to say the Earth is flat. The science about climate change is very clear. There really is no room for doubt at this point.

What is the difference between Lomborg's view of humanity and Hitler's? ...If you were to accept Lomborg's way of thinking, then maybe what Hitler did was the right thing.

Please eat less meat - meat is a very carbon-intensive commodity.

Warming of the climate system is unequivocal...most of the global average warming over the past 50 years is very likely due to anthropogenic greenhouse gases increases.

Nobody on this planet is going to be untouched by the impacts of climate change.