'She is getting people to listen, which we have failed to do.' Climate scientists say Greta Thunberg's efforts are building real momentum.
, formed by an international consortium of climate researchers, stated that global carbon emissions hit a record high in 2018. After a period of stability from 2014 to 2016, global greenhouse gas emissions rose in 2017 and then jumped another 2.7 percent in 2018 to an all-time high of more than 37 billion metric tons.
At current emissions levels, the so-called CO2 budget — which calculates how much more carbon dioxide can be released into the atmosphere while limiting warming to below 1.5 degrees Celsius — will likely be used up in about eight years, according to Mehling, a fact echoed by Thunberg in her speech to the U.N.But even if some of these challenges seem insurmountable, Donner said it’s important for people to not feel disheartened, because incremental changes can make a big difference.
Nathan Hultman, director of the Center for Global Sustainability at the University of Maryland, said Thunberg’s U.N. address was particularly effective at conveying the need for urgent action.
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