At Earth Day Climate Summit, Biden Promises 50% Reduction in US Greenhouse Emissions

Deirdre Shesgreen, USA TODAY

WASHINGTON – President Joe Biden pledged to cut U.S. greenhouse gas pollution in half by 2030 at a virtual climate summit Thursday, outlining an aggressive target that would require sweeping changes to America’s energy and transportation sectors. 

“These steps will set America on a path of a net-zero emissions economy by no later than 2050,” Biden said as the White House opened the two-day summit, attended by 40 leaders from around the world. 

“Scientists tell us that this is the decisive decade, this is the decade we must make decisions that will avoid the worst consequences of a climate crisis,” Biden said. 

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The US Has Pledged to Halve Its Carbon Emissions By 2030

by Charlotte Jeearchive, MIT

Joe Biden
President Joe Biden speaks in the Oval Office of the White House earlier this weekAP

The pledge makes a big statement about the US’s intentions on climate ahead of a meeting of global leaders today

The news: The US will pledge at a summit of 40 global leaders today to halve its carbon emissions from 2005 levels by 2030. This far exceeds an Obama-era pledge in 2014 to get emissions 26-28% below 2005 levels by 2025. The hope is that the commitment will help encourage India, China, and other major emitters to sign up to similar targets before the 2021 United Nations Climate Change Conference, set to be held in Glasgow, UK,  in November. “The United States is not waiting, the costs of delay are too great, and our nation is resolved to act now,” the White House said in a statement

The big picture: The world has already warmed up by 1.2 °C since preindustrial times, and it’s getting ever closer to the 1.5 °C threshold that the 2016 Paris agreement aimed to avoid. Climate scientists have been warning for years now that a significant amount of climate damage is already baked in thanks to previous emissions, but there is still a short window to avoid catastrophic global warming. 

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Climate Change in Graphics: The Charts That Show We Must Act Now

Global warming is already happening as carbon emissions keep on rising, with effects from sea level rise to more and more extreme weather events worldwide

By New Scientist

New Scientist Default Image
Buildings and farmlands are seen partially submerged in floodwaters following heavy rainfall in Poyang county of JiangxiREUTERS/China Daily CDIC

Earth is warming. Globally, 2020 was the second-warmest year on record, with a mean temperature 1.2°C above the pre-industrial average. By that measure, this means we are already four-fifths of the way to the 1.5°C “safe” level to which the world committed to try to limit global warming.

The culprits are carbon dioxide emissions from burning fossil fuels and land use changes that reduce Earth’s ability to draw down greenhouse gases. The results are already being felt, not just through rising temperatures, but also through loss of ice cover, rising sea levels and more extreme droughts, floods and storms across the globe.

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