Sentences with phrase «increased human emissions of greenhouse gases»

Researchers at Lawrence Berkeley National Laboratory have found to their surprise that despite the increased human emissions of greenhouse gases, between 2002 and 2014, plants were somehow able to absorb more carbon dioxide out of the atmosphere than in previous decades.

Not exact matches

Trump's stance on the environment contradicts thousands of scientists and decades of research, which has linked many observable changes in climate, including rising air and ocean temperatures, shrinking glaciers, and widespread melting of snow and ice, to an increase in greenhouse gas emissions from human activities.

The findings are the first to note increased greenhouse gas emissions due to antibiotic use in cattle; a recent study suggests that methane emissions from cud - chewing livestock worldwide, including cows, account for about 4 % of the greenhouse gas emissions related to human activity.

The ability of the oceans to take up carbon dioxide can not keep up with the rising levels of greenhouse gases in the atmosphere, which means carbon dioxide and global temperatures will continue to increase unless humans cut their carbon dioxide emissions.

In a paper published this month in Geophysical Research Letters, Lovejoy concludes that a natural cooling fluctuation during this period largely masked the warming effects of a continued increase in human - made emissions of carbon dioxide and other greenhouse gases.

A few of the main points of the third assessment report issued in 2001 include: An increasing body of observations gives a collective picture of a warming world and other changes in the climate system; emissions of greenhouse gases and aerosols due to human activities continue to alter the atmosphere in ways that are expected to affect the climate; confidence in the ability of models to project future climate has increased; and there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities.

Yet despite all the complexities, a firm and ever - growing body of evidence points to a clear picture: the world is warming, this warming is due to human activity increasing levels of greenhouse gases in the atmosphere, and if emissions continue unabated the warming will too, with increasingly serious consequences.

Application is an environmental issue in industrialized countries like the United States because of high energy input, increased greenhouse gas emissions, water pollution and other adverse effects on ecosystems and human health.

Moreover, it appears likely that essentially all of this increase results from the human emission of greenhouse gases.

Schlosser states, «In the last 150 years, the earth's temperature has increased by nearly 1 degree Celsius (1.8 degrees Fahrenheit) due to humans» emission of greenhouse gases, mainly burning of fossil fuels.»

The past century has seen a 0.8 °C increase in average global temperature, and according to the IPCC, the overwhelming source of this increase has been emissions of greenhouse gases and other pollutants from human activities.

Climate models suggest that human activities, specifically the emission of atmospheric greenhouse gases, may lead to increases in the frequency of severe storms in certain regions of the Northern Hemisphere.

Terrell Johnson, reporting on a recent NASA publication concluding that deep ocean temperatures have not increased since 2005 (http://www.weather.com/science/environment/news/deep-ocean-hasnt-warmed-nasa-20141007): «While the report's authors say the findings do not question the overall science of climate change, it is the latest in a series of findings that show global warming to have slowed considerably during the 21st century, despite continued rapid growth in human - produced greenhouse gas emissions during the same time.»

Human - made greenhouse gas emissions today are enormous, especially carbon dioxide (CO2), with annual emissions of over 8 Gigatons of carbon and average annual increases of about 2 ppm (parts per million) of CO2 in the air.

In the entirely subjective opinion of a particular group of IPCC authors, it's «extremely likely» (95 % certain) that «more than half of the observed increase in global average surface temperature from 1951 to 2010» was caused by human - generated greenhouse gas emissions (see the bottom of p. 13 here).

Relatively rapid degradation of ice - rich permafrost is adversely affecting human infrastructure, altering Arctic ecosystem structure and function, changing the surface energy balance, and has the potential to dramatically impact Arctic hydrological process and increase greenhouse gas emissions.

When Oreskes quotes, ««Human activities... are modifying the concentrations of atmospheric constituents... that absorb or scatter radiant energy... [M] ost of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas emissions», her quotation is accurate and she actually emphasizes the word likely.

To hold the temperature increase to about 1.5 degrees, the globe would need to cut its greenhouse gas emissions to zero by 2050, and then have negative emissions, meaning «the sum of all human activities is a net removal of CO2 from the atmosphere,» the study says.

[18] The report determines that manmade greenhouse gas emissions will accelerate sea - level rise, increase the intensity and frequency of extreme weather, and warm the planet at an unsustainable rate, adversely affecting everything from human and ecosystem health to transportation, forestry, and agriculture.

The science indicates that human influence has contributed to climate change as we've increased our carbon dioxide emissions and greenhouse gases, further accelerating the greenhouse effect and average temperature of the Earth.

Degradation of near - surface permafrost (perennially frozen ground) caused by modern climate change is adversely affecting human infrastructure, altering Arctic ecosystem structure and function, changing the surface energy balance, and has the potential to dramatically impact Arctic hydrological processes and increase greenhouse gas emissions.

One of the problems with the EPA's Endangerment TSD is the nearly complete disregard of observed trends in a wide array of measures which by and large show that despite decades of increasing anthropogenic greenhouse gas emissions the U.S. population does not seem to have been adversely affected by any vulnerabilities, risks, and impacts that may have arisen (to the extent that any at all have actually occurred as the result of any human - induced climate changes).

In fact, there is no better way to obtain a good picture of how human health and welfare may trend in the future under increases in greenhouse gas emissions than to assess how we have fared in the past during a period of increasing greenhouse gas emissions and ambient levels.

According to Dr Brekke, this time period coincides not only with an increase in human - caused greenhouse gas emissions, but also with a higher level of solar activity, which makes it complicated to separate the effects of these two phenomena.

Global warming emerged as a very strong hypothesis in the then - obscure scientific discipline of climate science in the 1980's with mounting empirical data supporting the human role in increases in greenhouse gas emissions, particularly carbon dioxide.

Moreover, it appears likely that essentially all of this increase results from the human emission of greenhouse gases.

Climate modelers are scrambling to try to save their creations» reputations because the one thing that they do not want to have to admit is that they exaggerate the amount that the earth's average temperature will increase as a result of human greenhouse gas emissions.

On Climate Action: The APS reiterates its 2007 call to support actions that will reduce the emissions, and ultimately the concentration, of greenhouse gases as well as increase the resilience of society to a changing climate, and to support research on technologies that could reduce the climate impact of human activities.

Yet despite all the complexities, a firm and ever - growing body of evidence points to a clear picture: the world is warming, this warming is due to human activity increasing levels of greenhouse gases in the atmosphere, and if emissions continue unabated the warming will too, with increasingly serious consequences.

«Climate science» as it is used by warmists implies adherence to a set of beliefs: (1) Increasing greenhouse gas concentrations will warm the Earth's surface and atmosphere; (2) Human production of CO2 is producing significant increases in CO2 concentration; (3) The rate of rise of temperature in the 20th and 21st centuries is unprecedented compared to the rates of change of temperature in the previous two millennia and this can only be due to rising greenhouse gas concentrations; (4) The climate of the 19th century was ideal and may be taken as a standard to compare against any current climate; (5) global climate models, while still not perfect, are good enough to indicate that continued use of fossil fuels at projected rates in the 21st century will cause the CO2 concentration to rise to a high level by 2100 (possibly 700 to 900 ppm); (6) The global average temperature under this condition will rise more than 3 °C from the late 19th century ideal; (7) The negative impact on humanity of such a rise will be enormous; (8) The only alternative to such a disaster is to immediately and sharply reduce CO2 emissions (reducing emissions in 2050 by 80 % compared to today's rate) and continue further reductions after 2050; (9) Even with such draconian CO2 reductions, the CO2 concentration is likely to reach at least 450 to 500 ppm by 2100 resulting in significant damage to humanity; (10) Such reductions in CO2 emissions are technically feasible and economically affordable while providing adequate energy to a growing world population that is increasingly industrializing.

Contrary to model projections, there is no evidence that floods are increasing in frequency or intensity as a result of human emissions of greenhouse gases.

«The Australian National University announced the discovery on Sunday, claiming evidence shows human - caused greenhouse gas emission during the past 45 years has increased the rate of temperature rise to 1.7 degree Celsius per century, «dwarfing the natural background rate,» according to Will Steffen, a climate change expert and ANU professor.»

The impacts of greenhouse gas (GHG) emissions on human health include the effects of air pollution on increased respiratory disease, the spread of vector - borne illnesses like cholera, malaria, and dengue fever due to changing weather patterns, and compromised agricultural production and food security leading to greater malnutrition.

The most influential of the greenhouse gases, carbon dioxide emissions have been increasing significantly during the last few centuries due to human activity.

Emissions of several important greenhouse gases that result from human activity have increased substantially since large - scale industrialization began in the mid-1800s.

Human activities (primarily, fossil fuel emissions; secondarily, land use changes such as deforestation6) have caused a rapid increase in the atmospheric concentration of greenhouse gases.

RE: The Over-whelming scientific Consensus on man - made CO2 caused Global - warming - 97 % of the climate scientists surveyed believe «global aver temps have increased» during the past century [So do I]-- Your quotes: How «significant it is that 84 % of climate scientists have reached a «consensus» that «human - induced warming is occurring» «--RCB- 84 % «personally believe» [implies they may NOT have actually studied this topic — IE: may NOT be experts on this particular matter] human - induced warming is occurring -LCB--... — «In 1991 only 41 % of climate scientists were very confident that industrial emissions of greenhouse gases were responsible for climate disruption.

Discussions of future impacts from changes in precipitation resulting from human emissions of greenhouse gases are everywhere in the report and they are usually bad — increased droughts, floods, and longer dry spells, for example.

E.g., research assumes greenhouse gas emissions cause warming without explicitly stating humans are the cause»... carbon sequestration in soil is important for mitigating global climate change» (4a) No position Does not address or mention the cause of global warming (4b) Uncertain Expresses position that human's role on recent global warming is uncertain / undefined «While the extent of human - induced global warming is inconclusive...» (5) Implicit rejection Implies humans have had a minimal impact on global warming without saying so explicitly E.g., proposing a natural mechanism is the main cause of global warming»... anywhere from a major portion to all of the warming of the 20th century could plausibly result from natural causes according to these results» (6) Explicit rejection without quantification Explicitly minimizes or rejects that humans are causing global warming»... the global temperature record provides little support for the catastrophic view of the greenhouse effect» (7) Explicit rejection with quantification Explicitly states that humans are causing less than half of global warming «The human contribution to the CO2 content in the atmosphere and the increase in temperature is negligible in comparison with other sources of carbon dioxide emission»»

Examining the output of climate models run under increases in human emissions of greenhouse gas and aerosols, Troy Masters noted a robust relationship between the modeled rate of heat uptake in the global oceans and the modeled climate sensitivity.

Global mean temperatures have increased since the late 1800s due to the human emission of greenhouse gases into the atmosphere.

¶ ¶ 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»).

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.

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.

If emissions are increasing at a rate over 20 times greater than the increase in concentration then it is clear that human emissions are not primarily responsible for the increase in atmospheric CO2 concentration and consequentially not primarily responsible for global warming for those who subscribe to the Greenhouse Gas hypothesis of global warming.