Sentences with phrase «recent emissions decline»

It cites about half a dozen studies on recent emission declines to support the claim that «gas deserves most of the credit for declining U.S. emissions.»

Not exact matches

For example, Karoly and Hamilton note in their op - ed that under the authority's recommendations, there would be no incentive for utilities and other major energy users to reduce emissions below baselines based on recent emission levels that decline over time.

Stricter emissions requirements on coal - fired power plants, together with low natural gas prices, have contributed to a recent decline in the use of coal for electricity generation in the United States, she said.

Harmful greenhouse gas emissions should continue to fall in industrialized countries and recent signs of decline in China should continue, but emissions are set to rise in India, southeast Asia and Africa as energy demand growth dwarfs efforts to improve air quality.

Many utilities have in recent years turned away from coal toward cheaper natural gas - as well as solar and wind - contributing to a steep decline in carbon emissions.

The trend for diesel registrations declining and increases in SUV registrations, combined with rising gasoline registrations, follows the recent news that CO2 emissions increased by 0.3 g / km in 2017.

The most recent Annual Energy Outlook (table A-18) sees total annual CO2 emissions from electricity declining another 260 million tonnes as coal keeps sliding off a cliff.

The declining signal over India shown by the GPCP decadal mode is broadly consistent with gauge measurements since the 1950s — that several research groups including my own are trying to understand, perhaps relating to emissions of anthropogenic aerosol — although there are discrepancies between these gauge - based data sets themselves (see our recent review in Nature Climate Change, for example).

There are alternatives I don't think I convinced either of my two audiences that fossil fuels are going to disappear overnight, but once I drew their attention to recent declines in Chinese coal production and a stall in global carbon emissions they did appear to concede that basing future investment decisions simply on past patterns of consumption might not be the wisest of strategies.

(Arkansas recently acknowledged that due to its recent decline in coal use, it is already meeting its 2030 Clean Power Plan emission target.)

Emissions from field production in recent years have fallen even more, declining «40.4 percent from 2006 to 2012,» according to EPA.

2008 data shows emissions have declined since peaking in 1999, but in recent years have oscillated around a flat trajectory, which the Commission expects to continue through 2010.

Given that decline, environmentalists lobbied the administration for cuts relative to a more recent baselines year, when emissions were lower than in 2005, because that would represent a greater total reduction.

The expert, Dr. James E. Hansen, and his colleagues conclude in a new analysis that the warming seen in recent decades has been caused mainly by other heat - trapping emissions — methane, chlorofluorocarbons, black particles of diesel and coal soot and compounds that create the ozone in smog — which are easier to control than carbon dioxide, with many of them already on the decline.

«Recent data from NSF - funded research in both Greenland and Antarctica demonstrate that fossil - fuel related emissions of both methane and ethane, two of the most abundant hydrocarbons in the atmosphere, declined at the end of the twentieth century... causes of the decline in methane emission rates to the atmosphere have been puzzling scientists for some time.

With recent data showing an unexpected rise in global emissions and a decline in energy efficiency, a growing chorus of economists, scientists and students of energy policy are saying that whatever benefits the cap approach yields, it will be too little and come too late...

In 2010, unlike other recent years, CO2 emissions from all industrial fuel sources increased by 7.8 % as the economy recovered from the recession that led to the large emissions declines of 2009.

Hydraulic fracturing has been the catalyzing force behind the recent decline in U.S. greenhouse gas emissions to near 20 - year lows.

Moreover the recent decline of the yearly increments d (CO2) / dt acknowledged by Francey et al (2013)(figure 17 - F) and even by James Hansen who say that the Chinese coal emissions have been immensely beneficial to the plants that are now bigger grow faster and eat more CO2 due to the fertilisation of the air (references in note 19) cast some doubts on those compartment models with many adjustable parameters, models proved to be blatantly wrong by observations as said very politely by Wang et al.: (Xuhui Wang et al: A two-fold increase of carbon cycle sensitivity to tropical temperature variations, Nature, 2014) «Thus, the problems present models have in reproducing the observed response of the carbon cycle to climate variability on interannual timescales may call into question their ability to predict the future evolution of the carbon cycle and its feedbacks to climate»

This parallels a recent NOAA study of atmospheric methane measurements that found that «methane emissions from natural gas as a fraction of production have declined from approximately 8 per cent to approximately 2 per cent over the past three decades» — with production soaring in recent years.

The reason is simple: according to almost every reputable third - party account, U.S. emissions of methane (CH4) from oil and natural gas development have been declining in recent years, thanks in large part to technological innovation.