Sentences with phrase «produced by human activities»

[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.

Nonlinear interactions between the climate and biogeochemical systems could amplify (positive feedbacks) or attenuate (negative feedbacks) the disturbances produced by human activities.

The map has far - reaching implications for efforts to slow deforestation, which accounts for roughly ten percent of greenhouse gas emissions produced by human activities, according to the authors of the paper that describes the tool and details its first findings.

Scientists have high confidence that global temperatures will continue to rise for decades to come, largely due to greenhouse gases produced by human activities.

Several greenhouse gases, which are in part or entirely produced by human activities, have accumulated in the atmosphere since approximately the middle of the 19th century.

The oceans are acting as a heat sink for rising temperatures and have absorbed about one - third of the carbon dioxide produced by human activities.

The results confirm greenhouse gases produced by human activities are the most important driver of global climate change, according to the researchers.

When we talk about climate change, we're talking about the scientifically observable — and increasingly severe — changes in global climate patterns that became apparent in the mid-to-late twentieth century and can be attributed to the rising levels of atmospheric greenhouse gases (carbon dioxide, in particular) produced by human activities like burning fossil fuels.

Estimating that it costs $ 100 per tonne to produce the biocoal and permanently sequester the stuff in abandoned mines or carbon landfills, a mere one trillion dollars per year suffices for the 8.5 GtC being produced by human activities recently.

But these days, with many scientists are focused on tracking greenhouse gases produced by human activities at national, regional and local scales, the current monitoring network doesn't measure up.

Most scientists and climatologists agree that weird weather is at least in part the result of global warming — a steady increase in the average temperature of the surface of the Earth thought to be caused by increased concentrations of greenhouse gasses produced by human activity.

There are the usual suspects — excess carbon dioxide, carbon monoxide, sulfur dioxide, nitrogen oxides, soot, and lead produced by human activity.

Emissions produced by human activity have caused annual monsoon rainfall to decline over the past 50 years, a study suggests.

Although the point is not universally accepted, the weight of scientific opinion suggests that global warming gases (GWG) produced by human activity form one important component of potential climate change.

In climate - change discussions, two Princeton professors go against the grain By Mark F. Bernstein The issue of climate change, or global warming, has become a rallying cry: The Earthâ $ ™ s surface temperatures are Ârising due to increased levels of carbon dioxide and other Âgreenhouse gases in the atmosphere, much of it produced by human activity.

In particular, they have shown that the atmospheric ozone layer is very sensitive to emission chemicals produced by human activity, and these discoveries have led to international legislation.

It is the principal greenhouse gas produced by human activity.

If by < em «basic climate principles» you mean the GH theory, the fact the CO2 is a GHG and that CO2 is produced by human activity, then you are correct.

Water vapor produces sixty to seventy percent of the Earth's global warming, but it is not included here because water vapor is not directly produced by human activity.

Not exact matches

Climate models show that the additional particles caused by human activity produce a cooling effect which partially offsets the greenhouse effect.

Indeed, according to a report last year by the research and management organization Battelle, «In 2010 alone, the human genome sequencing projects and associated genomics research and industry activity directly and indirectly generated $ 67 billion in U.S. economic output and supported 310,000 jobs that produced $ 20 billion in personal income.»

For a long time it was assumed that these compounds are only produced and released by human activity.

Methane is produced naturally, by processes including decomposition, and by human activity such as landfills and oil and gas production.

Gow's method of investigating how the human brain perceives and distinguishes among elements of spoken language combines electroencephalography (EEG), which records electrical brain activity; magnetoencephalograohy (MEG), which the measures subtle magnetic fields produced by brain activity, and magnetic resonance imaging (MRI), which reveals brain structure.

The Science Media Centre has produced a summary that sheds some light on why many scientists are increasingly dismayed by Antinori's activities: 1993 A British millionairess (59) gave birth to twins boys after fertility treatment by Dr Antinori, who said «The rich women from England.it's a very good story» 1999 It was reported, to the undisguised scepticism of many fertility experts, that Antinori had found a way of had helping infertile men by taking sperm producing element out of human testes and implanting them in rat testes, so that the rats would produce viable human sperm.

The global warming gases derived from human activity are produced by fossil fuels used in cars, in industry and in power plants, the agricultural production and the burning forests.

This is not a surprise as the rivers in Puget Sound have been much more severely damaged by careless human activities and produce far fewer salmon than the rivers of Canada.

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Incidentally, we also know that the extra CO2 results from human activity because lab tests can tell the difference between CO2 produce by burning fuel and CO2 that comes from other sources.

As with any proposed contract, the devil is in the details, particularly when the -LCB- contract -RCB--LCB- treaty -RCB--LCB- agreement -RCB- involves -LCB- possible -RCB--LCB- binding -RCB--LCB- restrictions -RCB--LCB- limits -RCB- on gases produced by every basic human activity, from driving to deforestation.

In 2007, Morano produced a report listing hundreds of scientists whose work, according to Morano, questions whether global warming is caused by human activity.

The enhanced Greenhouse Effect we are now measuring is a human fingerprint because the source of it is the continued emission of greenhouse gases, primarily carbon dioxide, produced by industrial activity.

The the greatest provable fact that sinks the argument that global climatic warming is induced by human activity, or is even significantly influenced by it, is the fact that it has been occurring since before the human race ever produced any noticeable pollution.

Scientists complained that the programme makers distorted evidence, and made elementary mistakes such as claiming that volcanoes produce more carbon dioxide than human activities, when in fact they produce less than 2 % of that caused by the burning of fossil fuels.

The formation of cloud droplets and cloud ice crystals is associated with suspended aerosols, which are produced by natural processes as well as human activities and are ubiquitous in Earth's atmosphere.

As a result, concrete production produces nearly 5 % of the global greenhouse - gas (GHG) emissions caused by human activity.

Figure 2.4: Different amounts of heat - trapping gases released into the atmosphere by human activities produce different projected increases in Earth's temperature.

This focus on practices — actions repeated by human beings — helps illuminate which activities are most likely to benefit communities, not to mention which are more likely to produce results relevant to carbon management goals.

Carbon dioxide is a greenhouse gas produced by natural processes and everyday human activities, especially the burning of fossil fuels.

Rice paddies produce an estimated 20 % of the methane released by human activities.

I suspect that Messrs Nyquist and Shannon, after spending a few hours contemplating the endless plotting of «trends» by Climate Scientists and their pontificating on the dire consequences thereof — with 97 % certainty, no less, would consider the whole field to be comedy comparable to Abbot and Costello's «Who's on First», were it not for the fact that this «comedy» is being cited as justification for governments taxing and regulating every human activity that either produces or consumes energy.

Under Watson's tenure, the IPCC last year produced its third comprehensive assessment of the state of climate science, concluding that» [t] here is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities,» and predicting that average global temperatures will rise between 3 and 10 degrees Fahrenheit by the endof the century — conclusions reaffirmed last spring at White House request by the National Academy of Sciences.