Sentences with phrase «concentration of greenhouse gases»

Growing populations and growing energy demand will greatly increase atmospheric concentrations of greenhouse gases in this century without big changes in technology, policy, or behavior.

Global warming in the modern era is being driven by increasing concentrations of greenhouse gases in the atmosphere, which leads to an enhanced greenhouse effect.

In computer - based models, rising concentrations of greenhouse gases produce an increase in the average surface temperature of the earth over time.

And the ocean's chemistry would continue to change as concentrations of greenhouse gases in the atmosphere rise.

Reducing deforestation is just one of a portfolio of mitigation options needed to reduce concentrations of greenhouse gases in the atmosphere.

Scientific predictions of the impacts of increasing atmospheric concentrations of greenhouse gases from fossil fuels and deforestation match observed changes.

Growing concentration of greenhouse gases from human activities is making this blanket thicker, and warming the planet.

It increases the ability to predict how changes in land use or climate warming could affect the sources and global concentrations of greenhouse gases in the atmosphere.

Numerous scientific studies indicate that the greater part of the global warming in recent decades is due to the great concentration of greenhouse gases... given off above all because of human activity.

These outside forces include things like concentration of greenhouse gases, variability from volcanic eruptions, or anomalies in the surface temperatures of the water.

Rather, they represent a range of possible futures, consistent with different concentrations of greenhouse gases in the atmosphere.

But fossil fuel burning will keep pumping out more CO2 year after year, pushing concentrations of the greenhouse gas higher and higher.

Therefore, higher concentrations of greenhouse gases registered today are the result, not the cause, of global warming.

These temperatures have to be linked to concentrations of greenhouse gases through climate models.

Before the industrial age, concentrations of the greenhouse gas usually peaked at around 280 ppm.

If the atmospheric concentrations of these greenhouse gases rise, the average temperature of the lower atmosphere will gradually increase.

Slow - changing factors, such as concentrations of greenhouse gases (GHGs), can be held constant in a weather forecasting model.

But the growing concentration of greenhouse gases from human activities is making this blanket thicker, and warming the planet.

Consequently an increase in the atmospheric concentration of greenhouse gases from human activities such as burning fossil fuels leads to an enhanced greenhouse effect.

Global warming in the modern era is being driven by increasing concentrations of greenhouse gases in the atmosphere, which leads to an enhanced greenhouse effect.

«Many aspects of climate change will persist for centuries even if concentrations of greenhouse gases are stabilized.

One provision of that treaty is that countries pledge to stabilize concentrations of greenhouse gases at a level avoiding «dangerous» interference with the climate system.

Stabilizing atmospheric concentrations of greenhouse gas emissions will require a reduction in global emissions of at least 80 % below 1990 levels by 2050.

That concentration has reflected roughly 0.1 watts per meter squared of sunlight away from the planet, enough to offset roughly one - third of the 0.28 watts per meter squared of extra heat trapped by rising atmospheric concentrations of greenhouse gases such as carbon dioxide.

The upper end of the scenarios assessed, representing a cut of around a third in greenhouse gas emissions from business - as - usual projections, could assist in keeping concentrations of greenhouse gases at 450 parts per million.

Concentrations of the greenhouse gas carbon dioxide in the global atmosphere are surpassing 400 parts per million (ppm) for the first time in human history

Because if it is, the cost of stabilising concentrations of greenhouse gases is nil.

Atmospheric concentrations of greenhouse gases continue to climb, despite reductions from some nations

Leave aside, for the moment, that the goal is not compatible with doing our fair share while stabilizing global concentrations of greenhouse gasses below 450ppm.

RCP8.5: The RCPs (Representative Concentration Pathways) are scenarios of future concentrations of greenhouse gases and other forcings.

«One of the main causes of these changes is the growing concentration of greenhouse gases emitted into the atmosphere as a result of human activity,» says Assaf Hochman of TAU's School of Geosciences, who led the research.

Results in the CMIP5 archive reflect the current state of understanding about the way the physics of the atmosphere and oceans respond to changes in concentrations of greenhouse gases released by human activity.

Most scientists and climatologists agree that weird weather is at least in part the result of global warming — a steady increase in the average temperature of the surface of the Earth thought to be caused by increased concentrations of greenhouse gasses produced by human activity.

«It is true that there are other factors (such as volcanism, the changes in the orbit and the axis of the Earth, the solar cycle), but numerous scientific studies indicate that most of the global warming in recent decades is due to the large concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxide and others) mainly emitted due to human activity.»

-- An unabated rise in concentrations of greenhouse gases boosts chances of disruptive shifts in climate and other systems that matter to people and other species.

But on one critically important metric — how hot the planet will get from a doubling of the pre-industrial concentration of greenhouse gases, a k a «climate sensitivity» — some climate researchers with substantial publication records are shifting toward the lower end of the warming spectrum.

If variations in the output of the Sun are indeed limited to the tenth of a percent that is recorded in direct measurements, future solar changes will likely have but a small effect, one way or the other, on the surface warming of a few degrees that is expected to result from doubled concentrations of greenhouse gases.