Instead of fossil fuels, countries will rely on things like renewable energy (wind, solar, geothermal and hydro), according to the book, while artificial intelligence in machines and appliances will make them more energy efficient. In that future, write Figueres and Rivett-Carnac, city streets will have more trees and fewer cars and Americans can travel via high-speed electric railroads. maintain a livable planet and a vibrant economy at the same time," says Mann. down to near zero by mid-century, we can. "If we can decarbonize our economy rapidly. If that happens, the world in 2050 will be very different. "So a 50% reduction by 2030, another 50% by 2040, another 50% by 2050," Rivett-Carnac says. Indeed, to avoid this future, the world must cut greenhouse gas emissions by half every decade, starting now, according to Figueres and Rivett-Carnac, whose Global Optimism organization partnered with Amazon to launch The Climate Pledge. But "there is much more that needs to be done." "Do I think that's likely? No - I think we're already seeing positive movement," he says. Mann, professor of atmospheric science at Penn State and director of the Penn State Earth System Science Center and author of " The New Climate War: The Fight to Take Back Our Planet." "Whether it gets as bad as people having to wear masks by 2050 is debatable, it should be possible to provide clean water without climate action."īut such a situation "isn't outside the realm of a possibility in a worst-case scenario where we refuse, as a civilization, to take meaningful action on climate," says Michael E. "Air pollution and emissions that cause climate change go hand in hand, so less action on climate change will mean poorer air quality," says Smith. And there is debate among experts as to whether it would be that dire.įor instance, some elements could be more likely than others, says Peter Smith, professor of soils and global change at the University of Aberdeen in Scotland.
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