Sentences with phrase «emissions from human activities»

Major sources of greenhouse gas emissions from human activities include power generation (about 25 per cent of all emissions), transport, industrial activities, deforestation and agriculture.
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.
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.
Each year, CO2 emissions from human activity pour just over 6 billion tonnes of carbon into the atmosphere.
But in the last 100 years, the increase in carbon dioxide through increased emissions from human activities has been significant.
The study found that emissions from human activities at least doubled the risk of such an event.
As emissions from human activities increase atmospheric carbon dioxide, they, in turn, are modifying the chemical structure of global waters, making them more acidic.
It is being billed as the time when nations will come together to agree on a global roadmap to reduce emissions from human activities and prevent dangerous climate change.
In the 1980's, greenhouse gas (GHG) emissions from human activity became a worldwide concern and are a possible cause of climatic changes.
A small but vocal number of people maintain that the observed temperature anomalies are not the result of greenhouse gas emissions from human activities warming the planet.
This effect may be strengthened by emissions from human activities.
CO2 is already in the atmosphere naturally, so why are emissions from human activity significant?
The minimum predicted temperature and sea level rises will jump, according to media reports, while the blame will be pinned firmly on greenhouse gas emissions from human activities.
For example, certain countries started having greener forests in the 19th century, before the onset of widespread carbon emissions from human activity.
This is because the planet is not only warming, the climate is changing and becoming more variable with the increase in CO2 emissions from human activity.
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.
Those changes are expected to continue and intensify if emissions from human activities continue.
(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.
of today's yearly emissions from human activities, making the reduction of greenhouse gases in the atmosphere a much more difficult task.
Mercury emissions from human activities take several forms that behave differently in the atmosphere Oxidized mercury, notated as Hg (II), generally settles or is rained out of the atmosphere close to emission sources.
Kessler adds, «Our results agree with this conclusion, showing that ancient methane emissions to the atmosphere in an area that is experiencing some of the greatest warming today, is actually quite small, especially when compared to more direct emissions from human activities
Concentrations in the atmosphere have crept up since 2007, but during the same period, methane emissions from human activities and natural sources have remained stable or even fallen slightly, both studies suggest.
The IPCC report says that between the start of the industrial revolution and 2011, carbon dioxide emissions from human activity added about 531 billion tonnes worth of carbon to the atmosphere.
Present levels are 380 ppm and rapidly rising due to accelerating emissions from human activities, primarily the burning of fossil fuels.
This concern, discussed at a meeting in Kyoto in 1973, helped inspire Mario Molina and Sherwood Rowland look into other chemical emissions from human activities.
Despite decades of research and thousands of peer - reviewed publications to the contrary, AFP rigidly adheres to the denialist arguments that greenhouse gas emissions from human activities pose no significant danger to Americans — or the rest of the planet.
Particularly important is curbing emissions from human activities, namely agriculture and the fossil fuel industries.
The oceans are absorbing over 90 % of the increased atmospheric heat associated with emissions from human activity.5 Like mercury in a thermometer, water expands as it warms up (this is referred to as «thermal expansion») causing sea levels to rise.
«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.»
The human contribution to this effect is unmistakable: the part of the atmosphere where excess carbon dioxide accumulates has expanded and warmed dramatically in recent years precisely during the period when emissions from human activity have increased.
The EPA is 90 to 99 % certain that at least 0.35 °C of warming in the extant («observed») record is from GHG emissions from human activity.
And the acidity of rain can be increased by anthropogenic emissions (i.e. emissions from human activities) with resulting enhanced corrosion and harmful health effects near the emissions.
These and other mercury emissions from human activities (past and present) account for at least 50 % and perhaps as much as 75 % of current, annual, global mercury emissions from all sources (including natural sources), but a large, unknown portion of those mercury emissions is due to past rather than current human activities, according to EPA estimates.
«Emissions of volcanic gases go up and down, helping to cool or heat the planet, while greenhouse gas emissions from human activity just continue to go up.»
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.
But CO2 emissions from human activity in the past, and those expected in the future, mean the next ice is likely to be delayed to 100,000 years» time, the researchers say.
The other, Michael Mann, argues that the world is «closer to the dangerous 2 °C warming mark than many experts acknowledge», and that continuing global carbon dioxide emissions from human activities at present rates will commit the Earth to 2 °C in less than three years from now.
In its latest report, the Intergovernmental Panel on Climate Change (IPCC) said that to have a reasonable chance of staying below 2C, total emissions from all human activity must not exceed 1,000 bn tonnes of carbon (or gigatonnes of carbon, GtC).
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.
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.
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.
Perry has questioned the scientific consensus that carbon dioxide emissions from human activity are the primary driver of 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.

Phrases with «emissions from human activities»

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