A new study by Canadian researchers finds the United States, Germany, the United Kingdom, China, Russia, and developing nations Brazil and India were responsible for more than 60 percent of global temperature changes between 1906 and 2005. The U.S. alone was responsible for 22 percent of the warning; China followed at 9 percent and Russia at 8 percent. Brazil and India each contributed 7 percent; the U.K. and Germany were each responsible for 5 percent. The findings, authors said, are particularly important for diplomats working toward a deal in 2015 to limit emissions.
"A clear understanding of national contributions to climate warming provides important information with which to determine national responsibility for global warming, and can therefore be used as a framework to allocate future emissions," researchers said in their paper, published in the journal Environmental Research Letters.
To restrict warming to U.N. targets of 2 degrees Celsius, rising world emissions would need to drop 40 to 70 percent by 2050, Reuters reports. U.N. Framework Convention on Climate Change Executive Secretary Christiana Figueres said number two historic emitter China is taking the right steps to address global warming with its energy-efficiency standards for buildings and other renewable energy commitments. In the U.S. carbon emissions from energy fell 12 percent between 2005 and 2012, but the U.S. Energy Information Administration estimates a 2 percent increase in these emissions in 2013.
Global Energy Demand Growth, Renewable Investment Slowing
Global energy consumption continues to grow, but slowly. The fourth annual edition of the BP Energy Outlook 2035 pegged growth at 41 percent compared with 55 percent the last 23 years. Although demand from emerging economies is predicted to rise steadily, energy demand elsewhere will slow through 2035.
The U.S., the report said, will be able to provide for its own energy needs in the next two decades with the acceleration of shale oil and gas production. Natural gas, in particular, will overtake oil as the country's most used fuel as early as 2027--accounting for 35 percent of U.S. consumption by 2035. Oil, however, will be the slowest growing of the major fuels with demand rising on average 0.8 percent annually. Still, U.S. oil imports are expected to drop 75 percent through 2035.
In Europe, the energy market is predicted to rise just 5 percent by 2030 and to become more dependent on imports of gas. China's energy production will rise 61 percent with consumption growing 71 percent by 2035.
The release of BP's Energy Outlook comes the same day Bloomberg New Energy Finance revealed that global investment in clean energy fell 12 percent last year.
"Global investment in clean energy was USD 254 billion last year, down from a revised USD 288.9 billion in 2012 and the record USD 317.9 billion of 2011," a release from Bloomberg stated. In Japan, clean energy investment spiked as a result of small-scale solar installations.
RGGI States Reduce Emission Cap in 2014
States participating in the Regional Greenhouse Gas Initiative (RGGI) dropped their carbon dioxide emissions cap for power plants 45 percent for 2014 to 91 million tons. The initiative, which partners New York, Delaware, Maryland, Connecticut, Massachusetts, Rhode Island, Vermont, New Hampshire and Maine, aims to reduce these states' power plant pollution by half of 2005 levels.
"RGGI has once again proven that state leadership provides the laboratory for innovation," said Kenneth Kimmell, commissioner of the Massachusetts Department of Environmental Protection and RGGI chair. "RGGI is a cost-effective and flexible program that can serve as a national model for dramatically reducing carbon pollution for other states throughout the nation."
Within the program, each power plant is assigned an amount of carbon dioxide it can release, but the plants can buy and sell allowances to increase or decrease their emissions. At the first allowance auction under the new limits March 5, states will offer up 18.6 million carbon dioxide allowances.
Appellate court arguments surrounding New Jersey's 2011 exit from the trading program began this week.
The Climate Post offers a rundown of the week in climate and energy news. It is produced each Thursday by Duke University's Nicholas Institute for Environmental Policy Solutions.