Sentences with phrase «estimated emissions from fossil fuels»

In addition, in Table 1 of the referenced source, only about 50 % of the estimated emissions from fossil fuels over the nearly 200 year period from 1800 to 1994 (given in petragrams Pg) is taken up by the oceans, disregarding estimated and highly uncertain source emissions from land use.

Not exact matches

Global emissions of carbon dioxide from the use of fossil fuels are estimated to have to be reduced by 75 to 80 per cent.

From there, the researchers estimated that the carbon stored in Central Congo Basin's peat is equivalent to about 20 years of fossil fuel emissions from the United States, at current raFrom there, the researchers estimated that the carbon stored in Central Congo Basin's peat is equivalent to about 20 years of fossil fuel emissions from the United States, at current rafrom the United States, at current rates.

«This is certainly true for fossil fuel - related approvals, where there is a clear causal connection between each phase of the fossil fuel supply chain (production, transportation, processing, and end - use) and the emissions from these activities can be estimated with existing tools and data.»

As city - dwellers and tourists switch from riding fossil fuel - powered vehicles to public bikes, more than 30,000 tons of carbon dioxide emissions is reduced annually, estimates Tao Xuejun, vice president of the program.

«New method for identifying carbon compounds derived from fossil fuels: Technique may find many industrial applications and can be used to estimate greenhouse gas emissions..»

A report from the National Academy of Sciences estimated that 10,000 samples a year, collected at carefully chosen locations around the United States, would be enough to estimate national fossil fuel emissions to within 10 percent of the actual value.

They used those readings to estimate NOx emissions from soil, after subtracting local estimates from the CARB California Emissions Projection Analysis Model of NOx emissions derived from fossemissions from soil, after subtracting local estimates from the CARB California Emissions Projection Analysis Model of NOx emissions derived from fossEmissions Projection Analysis Model of NOx emissions derived from fossemissions derived from fossil fuels.

While fracking has become a focal point in conversations about methane emissions, it certainly appears from this and other studies that in the U.S., fossil fuel extraction activities across the board likely emit higher than inventory estimates.»

Based on satellite monitoring and models that estimate the carbon released from burning vegetation (plus or minus 50 percent), the group reckons that U.S. fires produce 290 million metric tons of carbon per year, equal to about 5 percent of the nation's annual emissions from fossil fuels.

They then compared their results with other estimates of fossil fuel emissions, including estimates from the California Air Resources Board, who assisted with the study.

Methane emissions from fossil fuel industry and natural geological leakage are up to 110 per cent greater than current estimates, according to a detailed analysis of methane sources published in Nature this week.

Extrapolating from their forest study, the researchers estimate that over this century the warming induced from global soil loss, at the rate they monitored, will be «equivalent to the past two decades of carbon emissions from fossil fuel burning and is comparable in magnitude to the cumulative carbon losses to the atmosphere due to human - driven land use change during the past two centuries.»

The data presented by Miller et al. constrains the overall leak rate from the oil and gas supply chains — providing an independently derived aggregate estimate of fossil fuel sources of methane emissions.

Each year, governments and firms estimate and report CO2 emissions from the burning of fossil fuels, and their efforts to slow climate change are measured against these annual emissions.

In 2010, Davis et al [background] quantified an important component of socio - economic inertia by estimating the future emissions expected from all existing fossil fuel - burning infrastructure worldwide, naming these «committed» emissions.

Furthermore, emissions estimates discussed here include only those from fossil fuels burned within a country's borders, meaning that the tallies do not account for international trade.

The EIA estimates that due largely to the drop in coal - fired electricity, U.S. carbon emissions from burning fossil fuel declined 3.4 percent in 2012.

Carbon dioxide data from Pieter Tans, «Trends in Atmospheric Carbon Dioxide — Mauna Loa,» NOAA / ESRL, at www.cmdl.noaa.gov, viewed 16 October 2007, with historical estimate in data from Seth Dunn, «Carbon Emissions Dip,» in Worldwatch Institute, Vital Signs 1999 (New York: W. W. Norton & Company, 1999), pp. 60 — 61; fossil fuel emissions calculated from International Energy Agency, World Energy Outlook 2006 (Paris: 2006), p. 493; deforestation emissions from Vattenfall, Global Mapping of Greenhouse Gas Abatement Opportunities up to 2030: Forestry Sector Deep - Dive (Stockholm: June 2007Emissions Dip,» in Worldwatch Institute, Vital Signs 1999 (New York: W. W. Norton & Company, 1999), pp. 60 — 61; fossil fuel emissions calculated from International Energy Agency, World Energy Outlook 2006 (Paris: 2006), p. 493; deforestation emissions from Vattenfall, Global Mapping of Greenhouse Gas Abatement Opportunities up to 2030: Forestry Sector Deep - Dive (Stockholm: June 2007emissions calculated from International Energy Agency, World Energy Outlook 2006 (Paris: 2006), p. 493; deforestation emissions from Vattenfall, Global Mapping of Greenhouse Gas Abatement Opportunities up to 2030: Forestry Sector Deep - Dive (Stockholm: June 2007emissions from Vattenfall, Global Mapping of Greenhouse Gas Abatement Opportunities up to 2030: Forestry Sector Deep - Dive (Stockholm: June 2007), p. 27.

Since, the solar power is Green House Gas (GHG) emissions free, the power generated will replace anthropogenic emissions of greenhouse gases estimated to be approximately 93,022 tonnes of CO2e per year, thereon displacing 95,145 MWh / year amount of electricity from the generation - mix of power plants connected to the INDIAN GRID, which is mainly dominated by fossil fuel based power plant.

«It is estimated that plants and soil currently absorb about one quarter of the emissions from fossil fuels.

A 2011 study estimated total carbon stored by the earth's tropical forests at 271 billion tons — that's about 7 times the total carbon emissions from fossil fuel use in the year 2008.

Estimates of fossil fuel emissions were revised downwards a bit from the 2016 report, particularly between 1990 and 2010.

Every year the GCP provides an estimate of the global carbon budget, which estimates both the release and uptake of carbon including emissions from fossil fuels and industry, emissions from land - use changes, carbon taken up by the oceans and land, and changes in atmospheric concentrations of CO2.

Finally, we use the in situ estimates of CO2ff mole fraction to infer total fossil fuel CO2 emissions from the Sacramento region, using a mass balance approach.

Exxon officials estimated carbon dioxide emissions from fossil fuels will peak around the year 2030 and then begin declining.

IPCC Reference Approach for Estimating Carbon Dioxide Emissions from Fossil Fuel Combustion.

The Intergovernmental Panel on Climate Change in 2013 estimated that cumulative carbon dioxide emissions from fossil fuels and cement production — from 1750 to 2011 — was about 365 billion metric tonnes as carbon (GtC), with another 180 GtC from deforestation and agriculture.

For comparison, the Wikipedia estimate for global CO2 emissions from burning fossil fuels is 30 Gtpa.

They would boost CO2 emissions from fossil fuels by about 14 percent by 2012, Schmidt estimates.

Human CO2 emissions can be estimated from human fossil fuel consumption, and there has been enough of an increase in fossil fuel consumption to produce the observed increase in atmospheric CO2.

Atmospheric CO2 is likely to increase to around 640 ppmv *, assuming — There will be no global Kyoto type climate initiatives — Human CO2 emissions increase with human population — Global per capita human fossil fuel use increases by 30 % by 2100 (it increased by 20 % from 1970 to today)-- Population growth is estimated to slow down sharply, with population reaching 10.5 billion by 2100 (* Note that this could be lower by around 60 ppmv if there is a concerted switch to nuclear power instead of coal for new power plants)

Since 1750, it is estimated that about 2 / 3rds of anthropogenic CO2 emissions have come from fossil fuel burning and about 1 / 3rd from land use change.

Currently, officials estimate national fossil fuel - related emissions by what is burned (known as production) within a nation, but this approach underestimates the emissions contributions from countries that extract oil and oil for export.