Can we stop climate change by removing The Last Time the Globe Warmed 2 days ago   08:57

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Could we cure climate change? Geoengineering researcher Tim Kruger wants to try. He shares one promising possibility: using natural gas to generate electricity in a way that takes carbon dioxide out of the air. Learn more -- both the potential and the risks -- about this controversial field that seeks creative, deliberate and large-scale intervention to stop the already catastrophic consequences of our warming planet.

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Comments 1324 Comments

Shockwave Bot
Anthropomorphic climate change is bullshit.
Alex Susa
Stop 5G
George Reynolds
The current CO2 level is 400 ppm but during the last Ice Age it was about 180 ppm. At 150 ppm plants begin to suffocate as they need CO2 for photosynthesis and produce the oxygen we mammals need for life. Throughout geological history, CO2 levels varied mainly between 4000 and 8000 ppm, so our current level is a very low level compared to what might be considered "normal" for the planet.
Mike Hulks
This guy is mad. Reducing CO2 will cause plants to die off and raise the earth's temperature.
Andrew
The science is NOT settled. It is ludricous for public policy makers to try and plough ahead with ideas like the Green New Deal. CO2 comprises just 0.04% of earth's atmosphere and human activity accounts for only 4% of that 0.04%. Natural forcing agents are way more important factors in determining global temps.
David Gladstone
There is no CO2 crisis, it is not a pollutant and the more there is the better it is for all of us!
Increased CO2 is an effect of warming, not vice versa, which is what the Left claims. It does not cause anything, so this Ted talks show is nothing but baloney.

CO2 levels have been both high and low over millions of years, man had nothing to do with it at all. 3% of all CO2 may be man made, but only 1.5% of that has any effect on anything, it is really a microscopic and relatively unimportant perturbation of the planet's energy budget. Thus their goals are political not scientific, these people are frauds and need to be exposed.
king of all nanaes
Floating trees
ZigZagHockey
What madness. Take carbon dioxide out of the atmosphere and watch all plant life die and then all life.
guloguloguy
.......IMHO: THIS SPEAKER IS OBVIOUSLY "BIASED"!!!!; IN HIS INITIAL, OPENING SENTENCE, HE CLAIMS THAT "CLIMATE CHANGE" IS DANGEROUS"!..... AND YET, HE HAS NOT PROVEN THAT, HAS NO EVIDENCE OF THAT, AND HAS NO PROOF THAT HUMANS CAN RESOLVE HUMAN CAUSED "PROBLEMS" ON ANY WORLD WIDE SCALE!!!! WHAT ABOUT THE BIGGEST HUMAN CAUSED ENVIRONMENTAL PROBLEM: => "HABITAT LOSS, AND DEGRADATION"???!!! [CAUSED BY TOO MANY HUMANS, EXPLOITING NATURES NATURAL HABITATS, FOR GREED, GLUTTONY, AND PROFIT!...]
Knobov Sossidge
A geoengineering researcher huh? Would this guy's job exist without climate change?
Kroban3
Global warming is not a problem. The biosphere would benefit from a higher CO2 levels.
Sam Airy
Can anyone tell me how much the variance in temperature change can be explained by CO2?
Ron Arts
If you take out CO2, and it drops below 180ppm, all plants start dying, and everything with it. The world *needs* CO2, and more is better.
Jacob Zondag
Short answer: too late
Long answer: no, too late
Dio Brando
CO2 is necessary for trees. In fact trees are mainly made out the carbon that is made from the CO2 in the air. They intake gallons of water but only 5% of it will be used and 95% of the water will be evaporated.
David Gladstone
Either a supremely cynical joke being played upon the masses or there is a plague of stupidity wafting across this nation being spurred by the 24/7 lies of the media. For much of the last billion or more years CO2 levels were higher than they are now, which is .004, a small number. As physicist Will Happer says we are in a CO2 drought, and if anything, we should note that the recent small increase is 97% naturally caused anyway and it is the reason for the global greening that has changed barren land for green all over the world,, benefitting both man and animals.
Jeff Burnham
Remove the CO2 which plants need and you will eventually have less plants which produce oxygen. CO2 is a minor greenhouse gas, methane is far stronger and water vapour is the the strongest and has far more effective on global temperatures. The CO2 war is nonsense!
Jonathan Barnes
Why not make a statement that you need to stop the weather- THERE IS NO EVIDENCE AGAIN NO EVIDENCE THAT CARBON DIOXIDE HEATS THE PLANET WHICH IS CURRENTLY COOLING! YOU ARE AN IDIOT!
Jonathan Barnes
You are so stupid and naive and I thought TED was for integrity not stupidity like YOURS you VACANT MORON!
unknown world
Aaand... Watch from here closely...
6:55
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The Last Time the Globe Warmed Can we stop climate change by removing 2 days ago   10:54

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