Those offset CO2 emissions represent a tiny fraction
of the total emissions from many major cities.
Experts estimate that emissions from the degradation of mangroves can be as high as 10 %
of total emissions from deforestation globally, even though mangroves account for only 0.7 % of tropical forest area *.
The on - road freight sector is the fastest - growing source of transportation - related emissions, and currently represents 32 %
of total emissions from the Canadian transportation sector.
Added up over the course of a year, international shipping emits more than 800 million tons of carbon dioxide or its equivalent in other greenhouse gases — 11 percent
of the total emissions from the transportation sector.
Together, the lawsuits say, the companies were responsible for roughly 20 percent
of total emissions from 1965 to 2015.
(04/23/2009) Fire accounts for roughly half of greenhouse gas emissions from deforestation and about twenty percent
of total emissions from human activities, report researchers writing in the journal Science.
Those reductions would be beyond a baseline
of total emissions from 1990, so in fact would represent much deeper cuts compared to today's emissions levels.
Enteric fermentation accounts for one - quarter
of the total emissions from the livestock sector.
Not exact matches
In 2009, for example, the German government amended its rules so that inspections
of emissions performance would be based solely on readings
from a car's own «onboard diagnostic» system, effectively ceding
total control to the automakers.
Greenhouse gas
emissions from the aviation industry currently
total about as much as those
of Germany, not a small amount, and experts say that sum will grow as the world becomes even more mobile.
Cenovus and Suncor have been vocal supporters
of the NDP government's climate change policies which include an annual 100 - megatonne cap on
total emissions from the oilsands.
Facing a tide
of municipal anti-drive-thru ordinances, TDL commissioned a study last year
from RWDI consultants, based in Guelph, Ont., comparing
total emissions given off by customers» cars that use drive - thrus and those that use parking lots.
You get some sense
of the scale
of the
emissions trail that has accompanied this shift in economic geography when you consider that the
emissions coming
from China's export sector alone are greater than the
total emissions from any other economy other than the US's.
In fact, absent new measures Environment Canada's 2014
emissions trends report projected that oil sands
emissions would drive increased
emissions from the oil and gas sector
of 45 Mt CO2e (to a
total of 204 MtCO2e) between 2005 and 2020, offsetting the
emission reductions made in other sectors.
However, given that most
of Young's statements have equated the oil sands with the oil sands mining operations around Fort Mc Murray, it's worth noting that the mining (and upgrading)
of bitumen contributed 32 Mt CO2
emissions to Canada's
total in 2011, and that
emissions from mining operations are expected to stay well below those
of personal vehicles for some time.
Even building just one LNG terminal coupled with modest oil sands growth would increase oil and gas
emissions from 26 per cent
of Canada's
total greenhouse gas
emissions in 2014 to 45 per cent by 2030.
When composted, single serve coffee
from compostable pods will reduce
total greenhouse gas
emissions by 140,000 tonnes worldwide compared to the same amount
of coffee
from non-compostable pods that are almost always sent to landfill.
Digging deeper: Methane
from microbial fermentation represents 30 % and manure management 26 %
of total methane
emissions in the Golden State, according to 2016 board data.
CO2
emissions from the agricultural sector represent 21 - 25 percent
of total CO2
emissions, due to fossil fuels used on farms, shifting patterns
of cultivation and chiefly, deforestation.
Reducing food waste also impacts climate change as 20 percent
of total U.S. methane
emissions come
from landfills.
Greenhouse gas
emissions from the domestic sector currently make up some 26 %
of total emissions.
The
total emissions for the Lincoln Park project during the course
of the year is 30,272 metric tons CO2 equivalent, about equal to the annual
emissions from all households in the Town
of Ulster, or 1.5 %
of all Ulster County
emissions.
Electricity has historically been the chief source
of CO2
emissions, but shifts
from coal to lower - carbon fuels, especially natural gas, have shrunk its share
of the
total carbon dioxide pie in recent years.
Morris calls the work «exciting» but notes that due to the very low
total numbers
of photons used in the analysis,
of the dozen putative black holes some might actually merely be statistical flukes produced by coincidentally timed
emissions from other sources.
We are finding, and it is pretty well know by now, that CO2 stored in vegetation around the world represents, and its loss
from deforestation and degradation represents, 17 to 20 percent
of total CO2
emissions.
If China's use
of renewable and nuclear energy grows at a plausible rate, and the country captures some
of its
emissions from coal - burning power stations and keeps making improvements in energy efficiency, by 2050 its
total emissions could end up 4 per cent lower than today, says Zhou.
Starbucks Seattle, WA Restaurants 211 million green kWh, 20 %
of total power used A 2006 audit showed that a whopping 81 percent
of the coffee giant's greenhouse
emissions came
from the conventional energy it used to power its North American stores; each square foot consumed an average
of 6.57 kWh
of electricity a month.
When the new
emissions data were combined with current pipeline mileage information, significant regional variations were observed, with the Eastern region
of the United States accounting for more than a third
of the
total U.S.
emissions from pipeline leaks, and the larger western region, where systems tend to be newer, contributing 17 percent
of total emissions.
EPA inventory data suggests that
emissions from local distribution systems are thought to make up approximately 20 percent
of the
total from the entire natural gas supply chain.
Even the oil sands ultimate consumption in a gasoline, diesel or jet engine only results in 500 kilograms
of CO2 - equivalent per barrel
of refined petroleum products, meaning
total oil sands
emissions from well to wheel are considerably lower than those
of this nation's more than 500 power plants burning coal to generate electricity.
Prior to the earthquake and tsunami, the Japan Atomic Energy Agency had modeled a 54 percent reduction in carbon dioxide
emissions from 2000 levels by 2050, and a 90 percent reduction by 2100, with nuclear energy accounting for upwards
of 60 percent
of the country's
total energy mix.
Of that
total, 21 billion gallons must come
from sources that reduce greenhouse - gas
emissions by 50 percent or more — a goal that algae neatly achieve.
Beyond Kerosene The amount
of emissions from aircraft compared with other vehicles is relatively small — roughly 3 percent
of total worldwide greenhouse gas
emissions from fossil fuel burning, according to the U.N. Intergovernmental Panel on Climate Change (IPCC)-- nonetheless it has a major impact on the climate.
Lacking improvements in fuel efficiency combined with a comprehensive mitigation policy, the report finds that transport
emissions could double by 2050
from 6.7 gigatons
of emitted carbon dioxide in 2010, which represents 22 percent
of the world's
total.
So, too, areas in which people
of color make up at least 25 percent
of the
total population average nearly five times as many pounds
of chemical
emissions from industrial facilities per square mile, compared with communities where less than 5 percent
of the population are people
of color.
However, studies have shown that relevant amounts
of petroleum products, such as synthetic chemicals
from detergents, wash into wastewater and can eventually add to
total greenhouse gas
emissions.
The results, recently published in Science
of the
Total Environment, is surprising because long - term trends had shown a decrease in mercury
emissions whereas data collected between 2007 and 2013 indicate an unsettling upturn
from the Rocky Mountains to the Midwest.
In the Midwest NOx
emissions from soils have been estimated to comprise up to 40 percent
of the
total emissions in the summertime.
Although the country ranks among the top 20 percent most efficient in the world in terms
of emissions intensity by the intergovernmental organization International Energy Agency, its
total greenhouse gas
emissions jumped by 74 percent
from 1990 to 2012, according to the estimates
of D.C. - based think tank World Resources Institute.
They are plugged into equations to estimate
total emissions from industrial activities, such as the burning
of coal in boilers.
At Xcel Energy, the utility firm with the highest
total wind capacity in the United States, the number
of forecasting errors has dropped since 2009, saving customers some US$ 60 million and reducing annual CO2
emissions from fossil - reserve power generation by more than a quarter
of a million tonnes per year, says Drake Bartlett, a renewable - energy analyst with the firm who is based in Denver, Colorado.
In 2012 carbon
emissions from vehicles on the road accounted for 28 percent
of the
total fossil - fuel CO2
emissions for the entire country — a sizable chunk to target for reductions.
The researchers have used their results to extrapolate
total methane
emissions from abandoned wells in Pennsylvania, although they stress that the results are preliminary because
of the relatively small sample.
• About 20 percent
of total current carbon
emissions comes
from land - use change.
Based on the authors» calculations, the
emissions differences resulting
from vastly diverging oil price paths could be on the order
of 5 to 20 %
of the
total budget for staying below the internationally agreed 2 °C target.
The food system contributes about 30 percent
of total U.S. greenhouse gas
emissions, with the largest proportion coming
from animal - based food.
By 1900, increased
emissions of soot could have triggered the loss
of more than 15 m
of ice
from a glacier's surface; by 1930, the loss could have
totaled 30 m or more — magnitudes and timing that can easily account for the Alpine glacial retreat, the scientists contend.
By charting the energy distribution
of the detected positrons, an inspector could estimate how much
of the
total antineutrino
emission was
from a given fuel type in a reactor's core.
Total emissions during the 112 - day event were equal to one - quarter
of the annual methane pollution
from all other sources in the Los Angeles basin combined.
Taken together, he explained,
emissions from the aviation and shipping industries represent about 5 percent
of humanity's
total emissions — the approximate equivalent
of the collective carbon footprint
from the planet's least - polluting 164 nations, he explained.