Martin Rees Quotes

A cumulative change of less than 2°C by the end of this century will do no net harm. It will actually do net good [...] rainfall will increase slightly, growing seasons will lengthen, Greenland's ice cap will melt only very slowly, and so on.

In some parts of the world, what you are doing is already apparent.According to the World Health Organization, the warming of the planet caused an additional 140,000 deaths in 2004, as compared with the number of deaths there would have been had average global temperatures remained as they were during the period 1961 to 1990. This means that climate change is already causing, every week, as many deaths as occured in the terrorist attacks on September 11, 2001.

Remember, the difference between the world frozen over, in an ice ball, and the warming period we're in now is just 6 degrees centigrade. A change of just 1 degree can have a huge effect.

If you have a temperature rise, if it's a problem in one area, it's beneficial in another area. But sea level is the real 'bad guy,' and therefore they [The IPCC] have talked very much about it. But the real thing is, that [sea level rise] doesn't exist in observational data, only in computer modeling.

You know, some of the portfolios we might consider buying are portfolios which would do especially well if we have an economy-wide, or I mean, a global climate change that impacts us very negatively there are some companies that will do well, and so it might make sense to hold some of those in your portfolio.

I'm still convinced that - I'm sorry to say - the body of evidence shows that the planet is warming up. And it's warming up at a certain rate that has never been seen before in the history of the planet. We have to take that seriously.

As a professional snowboarder, my livelihood obviously depends on snow. And for me, traveling around the world, chasing the snow, I see the effects of climate change first hand. You can tell the difference.

The climate is changing, but the question is how much - and to what extent human factors are contributing to that.

We definitely don't want to go through another Ice Age or another natural cycle of global warming. Both happen over a long period of time. It would be disastrous for our civilization, and not just for us but many other species.

I believe the Earth is warming.

The laws of thermodynamic s are such that if the water is getting warmer - and I believe it is - the energy of the weather is going to go up.

We've lost half the summer sea ice in the Arctic. We've wiped out an enormous percentage of the world's coral reefs. We see huge changes in the planet's hydrology already, the cycles of drought and flood both amped up because warm air holds more water vapor than cold. These things are happening with a one-degree increase and going to two degrees won't be twice as bad, the increase in damage won't be linear, it most certainly will be exponential. So it was precisely the wrong moment to elect Trump.

I was a young person once, shortly after the polar ice caps retreated, and I distinctly recall believing that virtually all adults were clueless goobers.

We had global warming between 1940 and 1998. Since then, we haven't had a rise in temperature. That doesn't mean we don't have a problem. If that problem is going to be solved, it ought to be solved by an international treaty.

We'd already lost the possibility of stopping global warming entirely. That hasn't been in the cards for a long time. The triumph of Trump probably means that we're not going to be able to stop it at the two-degree mark that the world had been aiming for. That's very bad news, mostly because the planet seems to be more sensitive than we thought to even small increases in temperature.

So far the earth has warmed about a degree Fahrenheit globally averaged. That doesn't seem like an enormous amount but it's unlike what we would have expected twenty years ago.

Scientists with access to data from Navy submarines traversing underneath the North polar ice cap have warned that there is now a 75 percent chance that within five years the entire ice cap will completely disappear during the summer months.

We are now at the point in the age of global warming hysteria where the IPCC global warming theory has crashed into the hard reality of observations.

Warm air holds more water vapor than cold, and so the atmosphere is about 4% wetter than it was 40 years ago. This loads the dice for flood and drought, and we're seeing both in stunning abundance.

It now appears that the fracturing of that ice is happening much more quickly than people previously thought, apparently at a slow melt.

The Himalayan Glaciers on the Tibetan Plateau have been among the most affected by global warming. The Himalayas...provide more than half of the drinking water for 40% of the world's population...Within the next half-century, that 40% of the world's people may well face a very serious drinking water shortage, unless the world acts boldly and quickly to mitigate global warming.

Among the environmental trends undermining our future are shrinking forests, expanding deserts, falling water tables, collapsing fisheries, disappearing species, and rising temperatures. The temperature increases bring crop-withering heat waves, more-destructive storms, more-intense droughts, more forest fires, and, of course, ice melting. We are crossing natural thresholds that we cannot see and violating deadlines that we do not recognize.

Without a doubt, the warming of the past 100 years has been a welcome respite from a long and deadly Little Ice Age. The possibility that humans may have contributed to the recent warming does not make it any less welcome.

Certainly, packets of sea ice, in say the Arctic, which have failed to fully reform in the last couple of years.

We're clearly not going to stop global warming at this point. We've already raised the temperature of the planet one degree. We've got another degree in the pipeline from carbon we've already emitted. What we're talking about now is whether we're going to have a difficult, difficult century, or an impossible one.