Action Quote by George W. Bush

We don't know what causes climate change.

— Mitt Romney

One thing we do know about the threat of climate change is that the cost of adjustment only grows the longer it's left unaddressed.

— Jay Weatherill

I don't think we can do anything about controlling what our climate is.

— Ron Johnson

What do we expect the climate to do? How will it affect people? And how can we protect people from hardship? We should be…

— Walter Munk

The problem is we don't know what the climate is doing. We thought we knew 20 years ago. That led to some alarmist books…

— James Lovelock

We do not know how much of the environmental change is due to human activities and how much [is due] to long-term natural processes…

— Freeman Dyson

We really are already seeing the impacts of climate change, of temperatures rising all around the world.

— Declan McKenna

We will respond to the threat of climate change

— Barack Obama

There is no experimental data that exists that supports the view that the Earth's climate is changing in any dangerous way.

— Willie Soon

The essential thing we need to understand is that the climate crisis is not some future threat, but a very present peril, the biggest…

— Bill McKibben

Climate change is moving faster than we are, but we don't give up because we know that climate action is the only path.

— Antonio Guterres

Climate change poses clear, catastrophic threats. We may not agree on the extent, but we certainly can't afford the risk of inaction.

— Rupert Murdoch