Sentences with phrase «human emissions»
"Human emissions" refers to the release of certain substances into the environment by people. It includes gases or particles generated by human activities, such as burning fossil fuels, which contribute to air pollution and environmental issues like climate change. Full definition
The first report concludes that global warming is happening, and is very likely caused by human emissions of greenhouse gases.
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Virtually every advance in climate science points to bigger impacts and more serious consequences from human emissions of greenhouse gases than previously predicted.
Understanding the role of human emissions in the occurrence of such extreme fire events can lend insight into how these events might change in the future.
Whether or not human emissions are about to cause a massive switch in climate is more or less irrelevant in the big picture.
They all agree that there's a tendency for human emissions to heat the planet, but whether that's responsible for all the heating is an open question.
Does natural carbon sequestration kick in without human emissions in play, perhaps?
That is why deciding whether or not extreme weather events can be blamed on human emissions is so important.
The budget is an upper limit on total human emissions, from the beginning of the industrial revolution until the day we stop burning carbon.
As a result, even when human emissions do begin to drop, atmospheric carbon dioxide will continue to rise for up to a century.
If, however, the models include human emissions, including greenhouse gases and aerosols, they accurately reproduce the 1940 to 1970 dip in temperatures.
The world's plants can only pull so much CO2 out of the atmosphere in a given season, while human emissions keep rising.
In short, future human emissions may alter one of the most reliable methods for learning about the past.
To keep to 350 ppm, which already means a long - term warmer world, we may have to go to zero or less - than - zero human emission levels.
The additional amount of forest with world - average carbon uptake rate that would be required to completely offset human emissions of carbon to the atmosphere is therefore highly uncertain.
The amounts of carbon would be vast, on a scale comparable to current human emissions.
The harsh news is beyond human emissions, global warming itself will further damage the forests, thus creating a positive feedback loop.
And is it just coincidence that it matches recent human emissions?
And there has been no warming since 2001, despite record human emissions of carbon dioxide.
Because it contains greenhouse gases from a time before human emissions complicated the picture, the ancient air offers scientists clues to future climate patterns.
The people who claim that the CO2 increase is not anthropogenic have never outlined a consistent explanation of how that could happen in the face a massive human emissions.
Therefore, the increase in human emissions during the industrial revolution can not be the cause of the increase in carbon dioxide.
But by general consensus human emissions of carbon dioxide have only been large enough to be significant since 1940 — yet the warming trend was in place for well over a century before that.
Many scientists say that ensuring the health of the world's forests requires slowing human emissions of greenhouse gases.
The model accounts systematically for key sources of uncertainty stemming from human emission pathways, global climate sensitivity and regional shifts in climate change.