The former vice president has a poor record. Over the past 11 years Mr. Gore has suggested that global warming had caused an increase in tornadoes, that Mount Kilimanjaro’s glacier would disappear by 2016, and that the Arctic summers could be ice-free as soon as 2014. These predictions and claims all proved wrong.
.. The Intergovernmental Panel on Climate Change—in its Fifth Assessment Report, published in 2013—found “low confidence” of increased hurricane activity to date because of global warming. Storms are causing more damage, but primarily because more wealthy people choose to live on the coast, not because of rising temperatures.
.. hurricane damage now costs 0.04% of global gross domestic product. If climate change makes hurricanes stronger, absolute costs will double by 2100. But the world will also be much wealthier and less vulnerable, so the total damage is estimated at only 0.02% of global GDP.
.. Then viewers are shown footage of Manhattan taking on water in 2012 after superstorm Sandy, apparently vindicating Mr. Gore’s claims. Never mind that what he actually predicted was flooding caused by melting ice in Greenland.
.. Mr. Gore’s prescriptions—for New York and the globe—won’t work. He claims the answer to warming lies in agreements to cut carbon that would cost trillions of dollars. That would not have stopped Sandy. What New York really needs is better infrastructure: sea walls, storm doors for the subway, porous pavement. These fixes could cost around $100 million a year, a bargain compared with the price of international climate treaties.
.. By 2030 the Paris climate accord will cost the world up to $2 trillion a year, mostly in lost economic growth, according to the best peer-reviewed energy-economic models. It will remain that expensive for the rest of the century. This would make it the most expensive treaty in history.
.. if every country fulfills every promised Paris carbon cut between 2016 and 2030, carbon dioxide emissions will drop by only 60 gigatons over that time frame. To keep the temperature rise below 2 degrees Celsius, the world must reduce such emissions nearly 6,000 gigatons over this century, according to the IPCC. A “successful” Paris agreement wouldn’t even come close to solving the problem.
.. activists like Mr. Gore, the world remains focused on subsidizing inefficient, unreliable technology, rather than investing in research to push down the price of green energy. Real progress in Paris could be found on the sidelines, where philanthropist Bill Gates and others, including political leaders, agreed to increase spending on research and development. This is an important start, but much more funding is needed.