This post originally appeared on Txchnologist
At a time when many are adopting the narrative that carbon markets are faltering, the European Union (EU) is aggressively pursuing the expansion of theirs to include aviation. One of only two mandatory greenhouse gas (GHG) cap-and-trade systems in the world, the EU Emissions Trading Scheme (ETS) plans to fold in a new sector beginning in January 2012. Our research shows reducing GHG emissions from aviation is critical if we are to mitigate the impacts of global climate change. Low-carbon fuel technology and other technologies for airplanes are advancing at a rapid clip, but we need a climate policy – either a price on carbon or something else – to get over the hump.
|Glaciers on the summit of Mount Kilimanjaro|
I recently returned from climbing Mount Kilimanjaro in Tanzania for a great cause, and I was reminded why I left engineering to work on climate change. Mount Kilimanjaro, or Kili, is the tallest peak in Africa, and its summit is covered with beautiful glaciers (see the picture to the right). But those glaciers are rapidly disappearing, and scientists estimate Kili’s summit will be ice free by 2022. This trend is a prime example of forced adaptation to climate change and provides a serious warning of things to come unless we work together to reduce our global greenhouse gas emissions. The action we need has to come from government at all levels, businesses, and individuals as we explain in our Climate Change 101 series.
Undoubtedly, it’s a different climate for talking about climate change this year. Extreme weather events have replaced legislative proposals as the big hook for discussing the issue. What hasn’t changed much is that we are still talking about it, and much of the talk still centers on the costs.
When climate legislation was before Congress last year, much of the discussion focused on the costs of reducing greenhouse gas emissions. This year we are seeing a new set of headlines. Story after story describes communities across our country being hit by extreme weather events – the floods in the Mississippi, Missouri and Souris rivers, the drought in Texas, and the wildfires in Florida and Arizona. We see vivid photos of temporary levees being built around nuclear power plants and wildfires threatening stored plutonium in New Mexico. The increasing number of extreme weather events is a wake-up call of the costs we will incur if we fail to address climate change.
We are teaming up with Scientific American to explain the link between climate change and extreme weather. In a new three-part series featured on Scientific American.com, award-winning science journalist John Carey dissects the science, impacts, and actions to take regarding the record-breaking floods, heat waves, droughts, storms, and wildfires experienced across the United States and the world in the past year. The first installment appears today.
In a unanimous (8-0) decision, the U.S. Supreme Court ruled in AEP v Conn that the state and land trust plaintiffs could not invoke a federal common law public nuisance claim against the five largest electric power companies. The plaintiffs in the case were seeking controls on the carbon dioxide emissions from the utilities’ power plants. Building on their 2007 decision in Mass v EPA, the Court held that Congress in passing the Clean Air Act had authorized federal regulation of greenhouse gas emissions and in doing so had effectively “occupied the field” thereby negating any common law claims. In a decision noteworthy for its brevity and clarity, the Court stated:
We hold that the Clean Air Act and EPA actions it authorizes displace any federal common law right to seek abatement of carbon dioxide emissions from fossil-fuel fired plants. Massachusetts made plain that emissions of carbon dioxide qualify as air pollution subject to regulation under the Act. (page 10)