Sentences with phrase «increased emissions from human activities»

«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.»

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.

German researchers suggest that greenhouse gas emissions from human activity are linked to an increase in extreme weather events

As emissions from human activities increase atmospheric carbon dioxide, they, in turn, are modifying the chemical structure of global waters, making them more acidic.

Eliminating clouds from the dimming equation now leaves little doubt that human activity, in the form of a nine-fold increase in fossil fuel emissions over the same half - century period, has entrenched China in a foggy haze that absorbs and deflects the sun's rays.

When aerosols from human activities such as industrial plant and vehicle emissions are added to the system, the energy budget has to deal with the increase.

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.

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.

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.

Tropical cyclone activity and intensity increasing Record droughts, floods, heat waves, cold spells, high tides occurring Unequivocal warming of the climate system observed with very high confidence that human activities are to blame Temperature rising even more dramatically in Arctic, threatening ice loss and extinction of species Halving human CO2 emissions immediately might save the planet from catastrophe.

A certain amount of continued warming of the planet is projected to occur as a result of human - induced emissions to date; another 0.5 °F increase would be expected over the next few decades even if all emissions from human activities suddenly stopped, 11 although natural variability could still play an important role over this time period.12 However, choices made now and in the next few decades will determine the amount of additional future warming.

In a recent article, we call this anthropogenic drought, which is water stress caused or intensified by human activities, including increased demand, outdated water management, climate change from anthropogenic greenhouse gas emissions, growing energy and food production, intensive irrigation, diminished supplies, and land use change.

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

¶ ¶ 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.