Sentences with phrase «by human combustion of fossil fuels»

But these 139 nations account for perhaps 99 % of all the carbon dioxide emitted by human combustion of fossil fuels.

But the suspicion is that the long - term trend in global warming driven by human combustion of fossil fuels that dump vast quantities of greenhouse gases into the atmosphere must be playing a part.

Climate change is happening, being driven by the human combustion of fossil fuels at unprecedented rates for more than a century.

Not exact matches

Researchers are confident that they understand the cycle of Ice Ages, and they also have a clear idea that the biosphere plays a hand in keeping the planet at liveable temperatures, but they also know that the high altitudes are more than usually affected by climate change driven by ever - higher ratios of greenhouse gases released by the combustion of fossil fuels by seven billion humans.

«Due to human activities such as the combustion of fossil fuels and deforestation, and the increased release of CO2 from the oceans due to the increase in the Earth's temperature, the concentration of atmospheric carbon dioxide has increased by about 35 % since the beginning of the age of industrialization.»

Climate change is driven by human activity — chiefly the combustion of fossil fuels and changes in land use — and forests and other natural ecosystems play a powerful role in both soaking up the greenhouse gases released by human economic activity and at the same time sheltering many of the other 10 million or so species that share the planet.

«In considering the question of human activity and climate change it is essential to distinguish between global warming, which is a progressive increase in the annual mean global temperature, and human - activity - induced greenhouse warming, as may, for example, be caused by the release of greenhouse gases into the atmosphere as a result of fossil fuel combustion or deforestation.»

The main culprits are small particulates — pollutants less than one tenth the thickness of a human hair that are produced by incomplete combustion of fossil fuels and biomass.

Although it is released by human activities through the combustion of fossil fuels, it is also formed by certain natural processes (see carbon cycle).

The most recent report of the International Panel on Climate Change says it is extremely likely that human influence has been the dominant cause of this warming which is driven by the build up of carbon dioxide emissions from fossil fuel combustion, cement production, and land use changes.

Vaughan's projection («scuse me, «extrapolation») of 1040 ppmv by 2100 is physically impossible to reach from human combustion of fossil fuels, even if we burned them all 100 % up by 2100.

Emissions from human activities, particularly the combustion of fossil fuels, are changing atmospheric composition, especially by raising the concentrations of climate - warming gases;

For decades, climate scientists have predicted that rising levels of atmospheric greenhouse gases from the human combustion of fossil fuel could lead to global warming, and that warming would be accompanied by more frequent or more violent storms.

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.

And although such constraints are not directly connected to climate change driven by profligate combustion of fossil fuels, what humans achieve is a combination of genetic and environmental limitations.

The report, The Human Cost of Weather - Related Disasters 1995 - 2015, is intended to focus attention during the UN climate change conference — which opens in Paris on Monday − on the damage already inflicted by global warming as a consequence of rising levels of greenhouse gases in the atmosphere, in turn as a consequence of the human combustion of fossil fuels and the destruction of the planet's forHuman Cost of Weather - Related Disasters 1995 - 2015, is intended to focus attention during the UN climate change conference — which opens in Paris on Monday − on the damage already inflicted by global warming as a consequence of rising levels of greenhouse gases in the atmosphere, in turn as a consequence of the human combustion of fossil fuels and the destruction of the planet's forhuman combustion of fossil fuels and the destruction of the planet's forests.

In fact, it clears up a long - standing uncertainty: just how much global warming − driven by prodigal human combustion of fossil fuels − is changing the rhythms of life in one zone of the planet.

But what happens, and how swiftly it happens, depends on human response to global warming, driven by the combustion of fossil fuels and the release of the greenhouse gas carbon dioxide into the atmosphere.

So, the concern is not with the fact that we have a greenhouse effect, but whether human activities are leading to an enhancement of the greenhouse effect by the emission of greenhouse gases through fossil fuel combustion and deforestation.

Sea level rise is happening everywhere, as ice caps and glaciers melt and the seas rise in response to global warming driven by prodigal human combustion of fossil fuels, and researchers have advanced from general warning to the kind of detail that could help city and state planners prepare to cope with flood risks.

¶ ¶ 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»).

According to Discovery News: «In a 2006 report, EPA officials stated that they investigated 86 complaints of damage to human health or the environment caused by «fossil - fuel - combustion waste management units» between 1994 and 2004.

[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.

But the potentially calamitous impact of clearance for mining, logging and ranching, combined with the longer - term impact of human - induced climate change, driven by fossil fuel combustion on a global scale, had to be identified by complex computer simulations.