David H. Koch Quotes

It's very clear that global climate change is occurring on earth, but it's also been very clear that that has always happened on earth. We've always had a changing climate on earth. We all know about ice ages. We know when our continent was covered with ice sheets. We know glaciers come and they go. It puzzles me that people forget that.

Some people call it global warming; some people call it climate change. What is the difference?

The first thing that is not obvious to people is global warming is a less-than-1% effect. It's like being shortchanged at the bank by a penny every dollar. Over a long period of time with lots of transactions, that piles up.

There's no question that, um, you know, the oceans have risen, right? And the climate change part is, is a real part of it.

The climate has been changing since there was a climate.

Climate change is real. Climate change is being substantially increased by humans and the carbon we put into the atmosphere. And it appears to be speeding up. If science has made any mistakes, science has been underestimating it.

We do know that global warming has led to the increase in number and intensity of weather events.

The risks brought about by climate change are a major concern. It goes without notice—unless people find out that 12 of the last 13 biggest climatic disorders have occurred in the last 10 years.

Climate change has been going on as long as the planet is here. There will be a little bit of it. We can’t stop it.

I don't know the science behind climate change. I can't say one way or another what is the direct impact, whether it's man-made or not.

Climate change is the greatest threat to humanity, perhaps ever. Global temperatures are rising at an unprecedented rate, causing drought and forest fires and impacting human health.

The basic scientific conclusions on climate change are very robust and for good reason. The greenhouse effect is simple science: greenhouse gases trap heat, and humans are emitting ever more greenhouse gases.

In fact, even the current administration now is releasing recent reports indicating that climate change is real, that global warming is occurring, that it is heavily influenced by man-made objects and that it is something we cannot ignore any longer.

The science is clear that there is an increase in the amount of CO2 in the atmosphere. What is not clear from the science is how much of that increase is caused by human activity; and what also is not clear is what impact those increases have on the climatic cycle.

Climate change is having a dramatic effect on the ground.

The basic science is very well established; it is well understood that global warming is due to greenhouse gases. What is uncertain is projections about specifics in the next few decades, by how much will the climate change.

As a scientist, my attention became totally focused on global warming some 15 years ago by the elegant and powerful measurements of carbon dioxide trapped in ice cores taken as much as 2 miles deep from the great East Antarctica ice sheet.

One volcano puts out more toxic gases - one volcano - than man makes in a whole year. And when you look at this 'climate change,' and when you look at the regular climate change that we all have in the world, we have warm and we have cooling spells.

Let me state what the official IPCC prediction is: Sea levels could go up as much as three-quarters of a meter in this century, but there is a reasonable probability it could be much higher than that.

Climate change - for so long an abstract concern for an academic few - is no longer so abstract. Even the Bush administration's Climate Change Science Programme reports 'clear evidence of human influences on the climate system.'

Climate change is happening, humans are causing it, and I think this is perhaps the most serious environmental issue facing us.

I think the climate has been changing for billions of years.

Even the president's own Science and Technology Office head Mister Holdren says no one single weather event is due specifically to climate change.

My view is that climate changes have happened in the last 80 years, that is, the world has got a little bit warmer, although not as warm as it has been in Medieval times, or the Bronze Age.

What I worry about is climate change, because that would have untold effects that we can't even measure yet.