EXPERTS AGREE

If there's no action before 2012, that's too late. What we do in the next two to three years will determine our future. This is the defining moment.

The current burden of greenhouse gas in the atmosphere is in fact more than sufficient to cause catastrophic climate change.

These are not choices amongst many options, but a necessity for life. It requires a ‘crash program ‘ — as quickly as possible — to thoroughly de-carbonise the economy in a time period measured in years to a decade or so, not decades to a century or more

The Arctic is often cited as the canary in the coal mine for climate warming. Now as a sign of climate warming, the canary has died.

We have passed that and some other tipping points in the way that I will define them. We have not passed a point of no return. We can still roll things back in time but it is going to require a quick turn in direction.

I would say that we only have five or 10 years now in which to actually stop the rise in global emissions before we run out of the chance of limiting warming to two degrees or below. We're simply out of time.

The world is in danger. We need to save the planet now! Immediately. Everyone, the world has become a single village. We must save the village.

The world had less than two years to secure a deal, or accept that global warming is irreversible.

What’s missing is a sense of urgency. We have a planetary emergency, and we have to find a way to create in the generation of those alive today a sense of generational mission.