John Christy quote

"I've often heard it said that there's a consensus of thousands of scientists on the global warming issue and that humans are causing a catastrophic change to the climate system. Well I am one scientist, and there are many that simply think that is not true."

John Christy

Occupation: Scientist

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John Christy

I looked at 73 climate models going back to 1979 and every single one predicted more warming than happened in the real world.

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John Christy

I've often heard it said that there's a consensus of thousands of scientists on the global warming issue and that humans are causing a catastrophic change to the climate system. Well I am one scientist,...

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John Christy

There is no doubt there is more carbon dioxide in the atmosphere, caused by the burning of fossil fuels. It should have an effect on the climate, but the numbers indicate that effect is relatively minor.

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Related quote

John Christy

I've often heard it said that there's a consensus of thousands of scientists on the global warming issue and that humans are causing a catastrophic change to the climate system. Well I am one scientist,...

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David Suzuki

Despite the international scientific community's consensus on climate change, a small number of critics continue to deny that climate change exists or that humans are causing it. Widely known as climate...

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Rick Perry

I think there are a substantial number of scientists who have manipulated data so that they will have dollars rolling in to their projects. I think we're seeing it almost weekly or even daily, scientists...

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Harrison Schmitt

As a geologist, I love Earth observations, but it is ridiculous to tie this objective to a 'consensus' that humans are causing global warming when human experience, geologic data and history, and current...

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Naomi Oreskes

Many people have the impression that there is significant scientific disagreement about global climate change. It's time to lay that misapprehension to rest. There is a scientific consensus on the fact...

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Leonardo DiCaprio

Thousands of climate scientists agree that global warming is not only the most threatening environmental problem but also one of the greatest challenges facing all of humanity. We must demand a separation...

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Ivar Giaever

I'm a skeptic. ...Global Warming it's become a new religion. You're not supposed to be against Global Warming. You have basically no choice. And I tell you how many scientists support that. But the number...

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Barack Obama

The issue of climate change is one that we ignore at our own peril. There may still be disputes about exactly how much we're contributing to the warming of the earth's atmosphere and how much is naturally...

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Kevin Warwick

I am afraid that I do not hold with the theory of 'global warming' - there will always be climate change....Big thing here is - do we know what we are doing that is bringing about climate change? At present...

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Gwynne Dyer

There is a point of no return after which warming becomes unstoppable - and we are probably going to sail right through it. It is the point at which anthropogenic (human-caused) warming triggers huge releases...

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David Bellamy

Global warming - at least the modern nightmare vision - is a myth. I am sure of it and so are a growing number of scientists. But what is really worrying is that the world's politicians and policy makers...

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Tony Blair

Climate change is the world's greatest environmental challenge. It is now plain that the emission of greenhouse gases, associated with industrialization and economic growth...is causing global warming...

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Louise Burfitt-Dons

Global warming causing climate change may be the ultimate issue that unites us all.

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Brad Carson

There are philosophical issues involved in that about choosing the right discount rate, the value, the future, and things like that which drive it. But its start with the premise that global warming is...

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John McCain

We have many advantages in the fight against global warming, but time is not one of them. Instead of idly debating the precise extent of global warming, or the precise timeline of global warming, we need...

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Prince Charles

We should be treating, I think, the whole issue of climate change and global warming with a far greater degree of priority than I think is happening now.

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Barack Obama

Today we're seeing that climate change is about more than a few unseasonably mild winters or hot summers. It's about the chain of natural catastrophes and devastating weather patterns that global warming...

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Prince Charles

I think we're going to find, with climate change and everything else, things like global warming and goodness knows what else and the cost of fuel for a start, that things are going to become very complicated.

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Malcolm Turnbull

Climate change is a global problem. The planet is warming because of the growing level of greenhouse gas emissions from human activity. If this trend continues, truly catastrophic consequences are likely...

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Bill Nye

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

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Malcolm Turnbull

The question of whether or to what extent human activities are causing global warming is not a matter of ideology, let alone of belief. The issue is simply one of risk management.

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