Sentences with phrase «humans fossil fuel use»

One climate doomsday scenario (among many) that continues to have no basis in climate science reality is the infamous prediction that Gaia will soon have a Venus - like atmosphere and boiling oceans... because of humans fossil fuel use.

«All this adds up to what scientists expect to be a gradual slowing of ocean CO2 uptake if human fossil fuel use continues to accelerate.»

If you accept that carbon dioxide is a greenhouse gas and that human fossil fuel use is now the dominant contributor to atmospheric CO2 changes, then knowing how much global temperatures respond to increased greenhouse gases in the atmosphere is important for understanding the future climate.

Over the last three decades, five IPCC «assessment reports,» dozens of computer models, scores of conferences and thousands of papers focused heavily on human fossil fuel use and carbon dioxide and greenhouse gas emissions, as being responsible for «dangerous» global warming, climate change, climate «disruption,» and almost every «extreme» weather or climate event.

But, of course, there has also been an increase in per capita human fossil fuel use and CO2 generation.

Its more the maximum that could be claimed is due to human fossil fuel use rather than is a measure of how much.

The case against CO2 is full of liabilities; if there is any bad consequence due in future to future CO2 it will take at least a century to produce an effect large enough to matter; there is no case that reducing human fossil fuel use will produce a climate benefit sooner than it produces a fuel benefit.

No matter how well informed you are, no matter how many peer - reviewed studies you cite, or how many times you point out the overwhelming agreement based on the evidence that exists among climate scientists that global warming is real and is principally caused by human fossil fuel use, you will get no where.

Atmospheric CO2 is likely to increase to around 640 ppmv *, assuming — There will be no global Kyoto type climate initiatives — Human CO2 emissions increase with human population — Global per capita human fossil fuel use increases by 30 % by 2100 (it increased by 20 % from 1970 to today)-- Population growth is estimated to slow down sharply, with population reaching 10.5 billion by 2100 (* Note that this could be lower by around 60 ppmv if there is a concerted switch to nuclear power instead of coal for new power plants)

Human fossil fuel use is also behind a general warming trend in the oceans observed over the past 50 years that increases the resistance to CO2 uptake.

There simply isn't enough primary productivity on the planet from sunlight — via biological growth and burning — to make up for human fossil fuel use.

Not exact matches

Our research focuses on biologically - based mechanisms to reduce pest issues, soil erosion, fossil fuel use, and greenhouse gas emissions; increase nutrient and water use efficiencies; improve pollinator activity and food security; and apply a systems approach to soil, crop, animal, human and planetary health.

The goals include ending single use plastics, promoting alternatives to fossil fuel - based materials, promoting 100 percent recycling of plastics, corporate and government accountability, and changing human behavior concerning plastics.

British and Finnish scientists have found a way of generating renewable propane using a bacterium widely found in the human intestine and say the finding is a step to commercial production of a fuel that could one day be an alternative to fossil fuel reserves.

The September report raised the probability that human actions, led by the use of fossil fuels, are the main cause of climate change since 1950 to at least 95 percent from 90.

Next, Doney (p. 1512) reviews how the chemistry of the oceans is changing, mostly due to human fossil fuel combustion, fertilizer use, and industrial activity.

Over time, the majority of human fire use has shifted from indigenous burning to agricultural burning to fossil fuel burning.

«The model we developed and applied couples biospheric feedbacks from oceans, atmosphere, and land with human activities, such as fossil fuel emissions, agriculture, and land use, which eliminates important sources of uncertainty from projected climate outcomes,» said Thornton, leader of the Terrestrial Systems Modeling group in ORNL's Environmental Sciences Division and deputy director of ORNL's Climate Change Science Institute.

A U.N. panel of climate scientists predicts that a build - up of planet - warming greenhouse gases in the atmosphere, mainly from human use of fossil fuels, will cause ever more droughts, floods, heatwaves and rising sea levels.

The carbon majors are defined as fossil fuel production entities and cement manufacturers that produced more than ≥ 8 million tonnes carbon per year (MtC / y), while the total human attribution case refers to all relevant human activities that have been measured and used in climate assessment model scenarios that influence climate change.

Human decisions have introduced additional perturbations to the carbon cycle, in the form of fossil - fuel burning, cutting down forests, and land use changes, just to name a few.

The concentration of atmospheric CO2 has increased dramatically since the Industrial Revolution (from around 280 parts per million [ppm] in preindustrial times to 401 ppm in 2015), primarily due to human activities such as the burning of fossil fuels and changes in land - use.

Humans did not begin using fossil fuels as a primary energy source until the Industrial Revolution in the 18th century.

But Petrenko also found that humans appear to be contributing more methane to the atmosphere through fossil fuel use and extraction than scientists previously believed.

Less understood — and more difficult to measure — is the influence of aerosol particles from human sources, particularly the use of coal and other fossil fuels.

Air and water pollution from fossil fuel extraction and use have high costs in human health, food production, and natural ecosystems, killing more than 1,000,000 people per year and affecting the health of billions of people [232], [234], with costs borne by the public.

Human - made tropospheric aerosols, which arise largely from fossil fuel use, cause a substantial negative forcing.

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.

However, the Management and Guest Contributors at WUWT accept the basic truth that CO2, water vapor, and other «greenhouse gases» are responsible for an ~ 33ºC boost in mean Earth temperature, that CO2 levels are rising, partly due to our use of fossil fuels, that land use has changed Earth's albedo, and that this human actvity has caused additional warming.

Now, humans having finally realized that there are unintended consequences to fossil fuel burning, are discussing how to continue using such Neanderthal energy technologies, while throwing up more pollutants or rigging up space - based Rube Goldberg contraptions to counteract their ill effects.

The report extolls the value of the oil and gas sector to the Canadian economy, and adds that many environmentalists «claim» that climate change is the most serious global environmental threat, and «claim» it is a direct consequence of human activity and is «reportedly» linked to the use of fossil fuels.

Human emissions are the majority source of warming in this current climate change and that continued use of fossil fuels will lead to catastrophic change too quickly for us to adapt to.

Like Tommy Lee Jones drills around Texas, human being are drilling around world and want to use up last drop of fossil fuel, emit dazens billion tons of greenhouse gas, pollute all the rivers of world, raise over several degree temperature, melt away all of Arctic ice.

Anyone who reads the detailed scientific explanation of Mr. Gary Novak (/ / nov55.com/ntyg.html), can easily grasp that human use and abuse of fossil fuels do not have a significant impact on Earth climate; and that implementing the Kyoto Protocol would only harm the health of the economy — not only the profits of big corporations, but also the pockets of all consumers — even the poorest.

Extrapolating from their forest study, the researchers estimate that over this century the warming induced from global soil loss, at the rate they monitored, will be «equivalent to the past two decades of carbon emissions from fossil fuel burning and is comparable in magnitude to the cumulative carbon losses to the atmosphere due to human - driven land use change during the past two centuries.»

The ultimate rise of CO2 is driven by human decisions on levels of fossil fuel use, principally.

Excerpt: Livermore CA (SPX) Nov 01, 2005 If humans continue to use fossil fuels in a business as usual manner for the next several centuries, the polar ice caps will be depleted, ocean sea levels will rise by seven meters and median air temperatures will soar 14.5 degrees warmer than current day.

[J] ust as humanity confronted «revolutionary change» (Rerum Novarum) in the19th century at the time of Industrialization, today we have changed the natural environment so much that scientists, using a word coined by our Academy, tend to define our era as the Anthropocene, that is to say, a period of time in which human action is having a decisive impact on the planet due to the use of fossil fuels.

The trick is to use the chemicals without human or environmental exposures, thereby producing a material that is itself environmentally beneficial by breaking our reliance on fossil fuels.

Most of these perturbations, tied either directly or indirectly to human fossil fuel combustion, fertilizer use, and industrial activity, are projected to grow in coming decades, resulting in increasing negative impacts on ocean biota and marine resources.

An update in The Times refers to a sentence linking the human impact on climate to a «development model based on the intensive use of fossil fuels.»

Or the evidence tying that increase to fossil fuel use, production of cement and other human activities?

What we need to be careful of is thinking that a majority of our fellow humans agree with us on such crucial issues as the need to slow or even reverse population growth or the need to decrease our use of fossil fuels.

In the New Mexico of 2020 includes a move away from fossil fuels, a perfected use of renewable power sources, zero - emissions buldings, fewer miles traveled, less imported power and fewer power lines, micorgrids that produce their own electricity for hundreds of communities, a reconfiguration of human organizations that aligns with better pricing and energy supply, green collar jobs, and supportive local governments.

About 85 % of human used energy worldwide is from fossil fuels.

«If we stopped using fossil fuel today, or by 2020 as Al Gore proposes, at least half the human population would perish and there wouldn't be a tree left on the planet with [in] a year, as people struggled to find enough energy to stay alive.»

Biofuel is widely considered a way to reduce greenhouse gases from fossil fuel use and thereby reduce human - caused global warming.

In two papers in the journal Earth Interactions, researchers have taken a closer look at the reality of this historic divide and the changing nature of the U.S. landscape as a consequence of climate change driven by ever - greater ratios of greenhouse gases in the atmosphere, in response to ever - more profligate human use of fossil fuels.

Climate sensitivity is a natural property of the climate system, but fossil fuel use is a matter of human choice.

Figure of 400 ppm calculated using fossil fuel emissions from G. Marland et al., «Global, Regional, and National CO2 Emissions,» in Trends: A Compendium of Data on Global Change (Oak Ridge, TN: Carbon Dioxide Information and Analysis Center, Oak Ridge National Laboratory, 2007), and land use change emissions from R. A. Houghton and J. L. Hackler, «Carbon Flux to the Atmosphere from Land - Use Changes,» in Trends: A Compendium of Data on Global Change (Oak Ridge, TN: Carbon Dioxide Information and Analysis Center, Oak Ridge National Laboratory, 2002), with decay curve cited in J. Hansen et al., «Dangerous Human - Made Interference with Climate: A GISS ModelE Study,» Atmospheric Chemistry and Physics, vuse change emissions from R. A. Houghton and J. L. Hackler, «Carbon Flux to the Atmosphere from Land - Use Changes,» in Trends: A Compendium of Data on Global Change (Oak Ridge, TN: Carbon Dioxide Information and Analysis Center, Oak Ridge National Laboratory, 2002), with decay curve cited in J. Hansen et al., «Dangerous Human - Made Interference with Climate: A GISS ModelE Study,» Atmospheric Chemistry and Physics, vUse Changes,» in Trends: A Compendium of Data on Global Change (Oak Ridge, TN: Carbon Dioxide Information and Analysis Center, Oak Ridge National Laboratory, 2002), with decay curve cited in J. Hansen et al., «Dangerous Human - Made Interference with Climate: A GISS ModelE Study,» Atmospheric Chemistry and Physics, vol.