For example, certain countries started having greener forests in the 19th century, before the onset of widespread
carbon emissions from human activity.
In today's West Australian, which is the most widely newspaper in Western Australia, there is a piece by Paul Murray discussing the survey by the American Meteorological Society of the views of its members on the link between
carbon emissions from human activity and global warming.
This idea, first proposed six years ago and formally endorsed by the International Energy Agency in 2011, has been gaining traction because of the ever - stronger scientific consensus that
carbon emissions from human activity is the principal driver of destructive climate change.
While the president and top administration officials continue denying the causal connection between
carbon emissions from human activity and climate change, many corporations, including utilities like DTE, have accepted it as fact.
Fears of
carbon emissions from human activity have the rest of the developed (and much of the developing) world taking steps to move away from oil.
They simply don't have the power to reduce
carbon emissions from human activities, making it nearly impossible for them to deal with the sea ice decline face on.
Three fourths of
the carbon emissions from human activities are due to the combustion of fossil fuels; the rest is caused by changes in land use, principally deforestation.
The Farm Bureau does not share the scientific opinion on climate change, with its official position being that «there is no generally agreed upon scientific assessment of the exact impact or extent of
carbon emissions from human activities, their impact on past decades of warming or how they will affect future climate changes.»
Not exact matches
It commits rich and poor nations to rein in rising
carbon levels and is an attempt to eliminate net greenhouse gas
emissions from human activity this century.
Perry has questioned the scientific consensus that
carbon dioxide
emissions from human activity are the primary driver of climate change.
Marine biodiversity is in jeopardy
from human activities such as acidification
from carbon emissions, posing an existential threat to many marine animals, Wiens said.
And achieving any stabilization target — whether 2 degrees C of warming or 450 ppm or 1,000 gigatons of
carbon added to the atmosphere by
human activity — will require at least an 80 percent cut in
emissions from peak levels by the end of this century and, ultimately, zero
emissions over the long term.
Each year, CO2
emissions from human activity pour just over 6 billion tonnes of
carbon into the atmosphere.
As
emissions from human activities increase atmospheric
carbon dioxide, they, in turn, are modifying the chemical structure of global waters, making them more acidic.
As more
carbon dioxide enters the atmosphere, the global ocean soaks up much of the excess, storing roughly 30 percent of the
carbon dioxide
emissions coming
from human activities.
Although
carbon dioxide accounts for the vast majority of greenhouse gas
emissions from human activities, methane
emissions are also an important factor driving climate change.
«My perspective is that it is not settled science,» he told the Senate spending panel, arguing that the jury is still out on whether
carbon dioxide
emissions from human activities are driving global warming.
Carbon sequestration is a promising strategy for mitigating
carbon dioxide
emissions resulting
from human activity.
Please note the last sentence of 71 pages
from Exhibit 5: presentation on «Understanding how
carbon dioxide
emissions from human activity contribute to global climate change»).
I often try to step back and take the point of view of the atmosphere in considering claims of progress on curbing
emissions of
carbon dioxide
from human activities.
His video illustrates what
carbon dioxide
emissions from human activities would look like if you could watch the gas volume accumulate in front of you in real - time.
In a move widely interpreted as his effort to «out green» Gore, Bush pledged to include
carbon dioxide, the main heat - trapping
emission from human activities, in a basket of restricted power plant pollutants.
Emissions of
carbon dioxide
from the burning of fossil fuels have ushered in a new epoch where
human activities will largely determine the evolution of Earth's climate.
The reporter, Karen Youso, wrote that the city's tree - lighting practices, with 60,000 incandescent bulbs burning around the clock for five and a half weeks, costs about $ 1,300 and results in 18.7 tons of
carbon dioxide, the main heat - trapping
emission from human activities.
«The primary cause of both trends is
emissions of
carbon dioxide and other greenhouse gases
from industry, transport and other
human activities.
But the IPCC concerns itself with consideration of anthropogenic (i.e. man - made) global warming (AGW) as a result of
emissions of greenhouse gases (notably
carbon dioxide, CO2)
from human activities.
Apart
from widespread damage to infrastructure (roads, houses) in northern territories, resulting annual
carbon emissions could eventually amount to 15 - 35 percent of today's yearly
emissions from human activities, making the reduction of greenhouse gases in the atmosphere a much more difficult task.
Like DiCaprio's short film
Carbon, released in the weeks prior to the United Nations» Climate Summit 2014, Before the Flood is based on the highly debatable hypothesis that
carbon dioxide (CO2)
emissions from human activities are causing catastrophic climate change.
Scientists say that the world is currently undergoing warming due to
carbon and other greenhouse gas
emissions from human activities, such as burning fossils, deforestation, and land use changes.
Seven times more
carbon emissions per year
from human activity than
from natural sources (NASA).
«It's [the increase in
carbon dioxide through increased
emissions from human activities] the only variable that can best explain the rapid increase in global temperatures.»
Also the Paris Agreement says by the second half of this century, there must be a balance between the
emissions from human activity such as energy production and farming, and the amount that can be captured by
carbon - absorbing «sinks» such as forests or
carbon storage technology.
Meanwhile,
emissions of
carbon dioxide
from human activities may be decreasing; he said they shrank slightly in 1998 and 1999, even as the global economy grew.
The warming of the Earth is largely the result of
emissions of
carbon dioxide (CO2) and other greenhouse gases
from human activities.
The region locks up more than 100 billion tons of
carbon — more than 11 years» worth of total greenhouse gas
emissions from human activities; plays an important role in global weather circulation patterns, including delivering rainfall to Central America, the United States, and southern South America; supports perhaps a third of terrestrial biodiversity; and is home to the bulk of the world's remaining indigenous people still living in traditional ways.
Of the world's total
carbon dioxide
emissions only a small fraction comes
from the
activities of
human beings, but it is that small fraction that might threaten the equilibrium between the much greater flows.
That is just 1 percent of the total
carbon dioxide
emissions which come
from all
human activity.
NGOs argue for reductions to
carbon dioxide
emissions from human activities (i.e. anthropogenic CO2
emissions) because it is assumed that these
emissions are causing the recent rise of
carbon dioxide in the air.
Fossil fuels supplied about 81 % of the primary energy consumed in the United States and were responsible for about 93 % of total U.S.
carbon dioxide
emissions from human activity in 2015.
Remember that this is the same Professor who believes that ``... the Great Barrier Reef will benefit
from rising seas, that there is no correlation between
carbon dioxide levels and temperature, that only 0.1 % of
carbon dioxide
emissions are due to
human activities, and that 96 % of the greenhouse effect is due to water vapour.»
As best researchers can tell, the oceans are taking up about a quarter of the
carbon emissions arising
from human activities.
In other words, the EF defines
carbon uptake in forests as the single mechanism for offsetting
human emissions of greenhouse gases
from industrial
activity to the atmosphere.
Ditto the challenge of flight: «If aircraft
carbon emissions continue to rise they could contribute up to 15 per cent of global warming
from human activities within 50 years.»
Since the Industrial Revolution,
emissions from human activities of greenhouse gases such as
carbon dioxide have driven the earth's climate system dangerously outside of its normal range.
¶ ¶ 38 («when used -LSB-,]... fossil fuels release greenhouse gases), 39 («use of fossil fuels emits
carbon dioxide»), 45 («
emissions resulting
from human activities are substantially increasing... greenhouse gases»), 48 («increase in atmospheric
carbon dioxide caused by the combustion of fossil fuels»), 52 («fossil fuels -LSB-,]... when combusted, emit
carbon dioxide»).
This warming is largely the result of
emissions of
carbon dioxide and other greenhouse gases
from human activities... — Global Warming Basics World Wildlife Fund
The identification of other, sometimes more powerful, greenhouse gases such as methane, the contributions to atmospheric
carbon dioxide
from other
human activities such as deforestation and cement manufacture, better understanding of the temperature - changing properties of atmospheric pollution such as sulphur
emissions, aerosols and their importance in the post-1940s northern hemisphere cooling: the knowledge - base was increasing year by year.
Read / Purchase the Report Climate Stabilization Targets:
Emissions, Concentrations, and Impacts Over Decades to Millennia (2011)
Emissions of
carbon dioxide
from the burning of fossil fuels have ushered in a new epoch where
human activities will largely determine the evolution of Earth's climate.
[7][8] The vast majority of anthropogenic
carbon dioxide
emissions (i.e.,
emissions produced by
human activities) come
from combustion of fossil fuels, principally coal, oil, and natural gas, with comparatively modest additional contributions coming
from deforestation, changes in land use, soil erosion, and agriculture.
In terms of greenhouse agents, the main conclusions
from the WGI FAR Policymakers Summary are still valid today: (1) «
emissions resulting
from human activities are substantially increasing the atmospheric concentrations of the greenhouse gases: CO2, CH4, CFCs, N2O»; (2) «some gases are potentially more effective (at greenhouse warming)»; (3) feedbacks between the
carbon cycle, ecosystems and atmospheric greenhouse gases in a warmer world will affect CO2 abundances; and (4) GWPs provide a metric for comparing the climatic impact of different greenhouse gases, one that integrates both the radiative influence and biogeochemical cycles.