The US is already behind in its agreed to commitment to clean power
A study just out in Nature climate Change suggests that the US is already behind in its commitments to reduce the use of fossil fuel as an energy source, and the concomitant release of climate-warming greenhouse gasses into the atmosphere.
The paper, by Jeffery Greenblatt and Max Wei, says:
Current intended nationally determined contributions (INDCs)are insufficient to meet the Paris Agreement goal of limiting temperature change to between 1.5 and 2.0?C above pre-industrial levels, so the effectiveness of existing INDCs will be crucial to further progress. Here we assess the likely range of US greenhouse gas (GHG) emissions in 2025 and whether the US’s INDC can be met, on the basis of updated historical and projected estimates. We group US INDC policies into three categories reflecting potential future policies, and model 17 policies across these categories. With all modelled policies included, the upper end of the uncertainty range overlaps with the 2025 INDC target, but the required reductions are not achieved using reference values. Even if all modelled policies are implemented, additional GHG reduction is probably required; we discuss several potential policies.
The authors note that we can reach the targets, if we do something about it soon. There is time. The main problem seems to be methane, emissions of which will be higher than previously estimated. Chris Mooney talked to the authors, reports that here, and notes:
Earlier this year, the U.S. EPA increased its estimate for how much methane is being emitted by the oil and gas sector, and by the U.S. overall, in recent years. The new study has more or less done something similar.
“We made some corrections to the 2005 and 2025 estimates for methane,” says Greenblatt. In particular, he said, in 2005 these changes added 400 million additional tons of carbon dioxide equivalents emitted as methane.
Greenblatt emphasized that assumptions of higher methane emissions aren’t the only reason that the U.S. could miss its goals, but that it’s a significant one. “An increasing amount of methane emissions is part of the story,” he said.
Another problem, of course, is the yahoos who live in conservative states, the self-interested fossil fuel industry, and presidential candidate Donald Trump. These nefarious actors are trying to force the US EPA Clean Power Plan out of existence because, well, I guess they want to see all of our children grow up in a post apocalyptic world.
John Upton at Climate Central notes:
Democratic presidential nominee Hillary Clinton has embraced the fight against global warming started by President Obama. Republican nominee Donald Trump has vowed to end it, such as by disbanding the EPA and abandoning international commitments.
Polluting industries and conservative states are suing the EPA in an attempt to overturn its new power plant rules, arguing that the agency overstepped its legal boundaries. The rules haven’t taken effect yet, but they’re the linchpin of American climate policy.
The U.S. Court of Appeals for the District of Columbia Circuit will hear opening arguments in the case Tuesday, with an eventual ruling likely from the Supreme Court. A judicial appointment by the next president could tip the Supreme Court against or in favor of environmental regulations, such as the Clean Power Plan.
So, the question I’d love to see asked in the next Presidential Debate is this: “A recent peer reviewed study indicates that the US is not on target to meet the promised reductions in greenhouse gas emissions. This is mainly due to methane release being greater than previously thought, but other factors matter as well. What will you do as President to get us back on track?”
More about the Clean Power Plan: