The critical question is whether carbon
dioxide emissions from human activity are significantly affecting climate patterns.
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.
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»).
Perry has questioned the scientific consensus that carbon
dioxide emissions from human activity are the primary driver of 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.
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.
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.
«Combined, the Earth's land and ocean sinks absorb about half of all carbon
dioxide emissions from human activities,» said Paul Fraser of the Commonwealth Scientific and Industrial Research Organization.
Not exact matches
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.
He led the effort to catalogue sulfur
dioxide emissions sources
from human activities and volcanoes and to trace
emissions derived
from the satellite observations back to their source by using wind data.
Carbon sequestration is a promising strategy for mitigating carbon
dioxide emissions resulting
from human activity.
Carbon
dioxide and other greenhouse gas
emissions from human activities.
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.
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.
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.
«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.»
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.
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.
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.»
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.
97 % of climate scientists agree that global warming trends are clear and «extremely likely» due to
human activities, most prominently the rising
emissions of carbon
dioxide from the burning of fossil fuels.
«There is no evidence, neither empirical nor theoretical, that carbon
dioxide emissions from industrial and other
human activities can have any effect on global climate.
The only way to do that is to reduce the output of so - called greenhouse gasses, caused primarily by carbon
dioxide emissions from industry, automobiles and other
human activities, Horton said.