This is your last chance. After this, there is no turning back. You take the blue pill — the story ends, you wake up in your bed and believe whatever you want to believe. You take the red pill — you stay in Wonderland, and I show you how deep the rabbit hole goes. Remember: all I’m offering is the truth. Nothing more.
|1975: The year the hockey stick met the blade.|
People will often ask, ‘What’s the tipping point?’ or ‘How much warming before we hit the tipping point?’ The answer is there is no one tipping point. That’s not how it works. Its not binary. We don’t go off a cliff. A much better analogy is we’re walking out onto a minefield. The farther we walk out into that minefield the greater likelihood we set off the explosives.
One of the clearest pictues of the greenhouse effect - why its happening and what we can do about it. Graphs and…smile.amazon.com
To get a one degree increase, you have to heat a lot of ocean water and a lot of atmosphere. It took 18,000 years for the Earth to warm 9 degrees Fahrenheit (5 degrees Celsius) from the last Ice Age to the present, about one half degree every thousand years. One degree in a single century is a substantially faster rate of warming, 20 times faster than the average.
At the end of the 21st century the Earth may be warmer than it is now by as much as another 9 degrees (5°C). That would be warmer than it has been in 1,000,000 years.
Ultimately, we must thin the CO2 greenhouse blanket by removing the CO2 that is already in the atmosphere. Given the near-term risk of exceeding the dangerous to catastrophic thresholds, the timing for pulling these levers is a crucial issue. Ideally, these levers should be pulled immediately by 2020.