A baby born in the new year can expect to live in a world that suffers the effects of catastrophic climate change, according to an article in The Guardian based on a new scientific study published in the journal Nature.
Professor Steven Sherwood at the University of New South Wales in Australia, who led the new research, said that unless emissions of greenhouse gases are cut, the planet would heat up by a minimum of 4C by 2100. The study found that as the planet heats, fewer sunlight-reflecting clouds form, causing temperatures to rise further in an upward spiral.
“4C would likely be catastrophic rather than simply dangerous,” Sherwood told the Guardian. “For example, it would make life difficult, if not impossible, in much of the tropics, and would guarantee the eventual melting of the Greenland ice sheet and some of the Antarctic ice sheet,” with sea levels rising by many meters as a result.
…”Climate skeptics like to criticize climate models for getting things wrong, and we are the first to admit they are not perfect,” said Sherwood. “But what we are finding is that the mistakes are being made by the models which predict less warming, not those that predict more.”
For the sake of argument, it’s customary to say that climate models only predict what is likely to happen unless we do something fast. I am starting to doubt that there is anything that can be done now to prevent catastrophic climate change, or even slow it down. This is because certain tipping points, for example rapid melting of the Greenland ice sheet, may have already been reached. Once a trigger is pulled, it cannot be un-pulled. The bullet is on its way.