Sentences with phrase «human greenhouse gas production»

Associated with human greenhouse gas production is the release of fine particle known as aerosols which have a temporary cooling effect (they last in the atmosphere less than a week).

Not exact matches

As well as explaining that the production of meat — on its journey from farm to fork — is responsible for 15 per cent of the planet's harmful greenhouse gas emissions, it underlines that raising equivalent amounts of grain or vegetables for human consumption uses far less land, water and resources.

However, the two reports agree that Earth is undergoing a long - term warming trend that shows no sign of abating, and that rising temperatures are driven by human activity, largely through the production of greenhouse gasses.

As well as being a major contributor to human - induced greenhouse gas emissions, current livestock production has other environmental impacts.

Agriculture and land use change contributed about 1/3 of total human greenhouse gas emissions in the past decade, through crop cultivation, animal production, and deforestation.

The EPA estimates that methane accounts for about 9 percent of greenhouse gas emissions in the U.S. Landfills are the third - largest source of methane emitted by humans in the U.S. behind oil and gas production, and livestock.

In the end, the greatest obstacle facing those who are trying to slow the output of greenhouse gases is the fundamental and pervasive nature of the human activities that are causing the problem: deforestation, industrialization, energy production.

Human activity — particularly the production of greenhouse gasses from fossil fuel emissions — is reshaping our planet, effecting rapid environmental change at a rate never seen before.

Tropospheric ozone (O3, or smog) is a pollutant with widespread negative consequences for human health and crop production; it is also a greenhouse gas.

«Meat production represents 18 percent of global human - induced GHG emissions... While the world is looking for sharp reductions in greenhouse gases responsible for climate change, growing global meat production is going to severely compromise future efforts... a study from the University of Chicago showed that if Americans were to reduce meat consumption by 20 percent it would be as if they switched from a standard sedan to the ultra-efficient Prius.»

Despite the paucity of proof for past climate claims, the third IPCC report says that «new evidence» makes it likely that «most of the warming observed over the last 50 years» comes from the human production of greenhouse gases.

More than 31,000 scientists across the US, «including more than 9,000 PhD.s in fields such as atmospheric science, climatology, Earth science, environment and dozens of other specialties, have signed a petition rejecting «global warming,» the assumption that the human production of greenhouse gases is damaging Earth's climate.

And to maintain or slightly increase planetary temperature is also very much a global good if — as Ruddiman and other scientists assert — the human production of greenhouse gases is helping to hold our planetary environment in its historic, benignly warm, interglacial mode.»

The leading climate researchers also still agree that humans are contributing to climate change by the production of greenhouse gases from the burning of fossil fuels.

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

Serious, imminent, and irreversible damages to natural ecosystems, infrastructure, agricultural production, and human health make dramatic reduction of greenhouse gas emissions a key priority for communities around the world.

«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.

My personal views are: (1) Yes, it is true that increasing greenhouse gas concentrations will tend to warm the Earth's surface and atmosphere; (2) Yes, human production of CO2 is producing significant increases in CO2 concentration; (3) The rates of change of temperature in the previous two millennia are uncertain because proxies have been misapplied by the hockey stick crowd.

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.

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.

Instead of including projections for extreme climate changes as a result of continued human emissions of greenhouse gases resulting from our production of energy, the high - end projections would have featured relatively modest changes and the low - end projections would have been completely unremarkable.

Whether or not global warming is entirely or largely due to human use of carbon for fuel, the reduction of the dependence on carbon makes sense for reducing asthma in children; reducing black lung disease; reducing the production of coal ashes, residues, and effluents; reducing the impact of carbon greenhouse gasses; reducing pipeline failures; reducing coal and oil surface transport accidents; reducing pipeline - related warfare; and reducing air pollution.

Currently global livestock production, increasingly intesified under factory farming, is responsible for (conservatively) 18 % of total human - caused greenhouse gas emissions.

While the SE4All objectives do not explicitly address climate change, it is clear that sustainable energy is a prerequisite for reducing greenhouse gas emissions: 80 % of human carbon dioxide emissions come from the global energy system, including transportation, buildings, industry, and electricity, heat, and fuel production.