Sentences with phrase «concentration of carbon dioxide in the atmosphere»

The cooling effect of a grand minimum is only a fraction of the warming effect caused by the increasing concentration of carbon dioxide in the atmosphere.

We should adopt a target of 350 ppm concentration of carbon dioxide in the atmosphere as soon as possible.

Just six months ago, the world entered a new danger zone when concentrations of carbon dioxide in the atmosphere passed 400 parts per million for the first time in recorded history.

The WMO — the United Nations system's leading agency on weather, climate and water — said the globally averaged concentration of carbon dioxide in the atmosphere reached «the symbolic and significant milestone of 400 parts per million» for the first time in 2015 and surged again to new records in 2016 on the back of the very powerful El Niño event.

On May 9, the daily mean concentration of carbon dioxide in the atmosphere of Mauna Loa, Hawaii, surpassed 400 parts per million (ppm) for the first time since measurements began in 1958.

In 1988, he rose to public notice with testimony before Congress that warned of the implications of rising concentrations of carbon dioxide in the atmosphere.

as humans burn fossil fuels and dump ever greater concentrations of carbon dioxide in the atmosphere.

To date, the global average concentration of carbon dioxide in the atmosphere has increased by nearly 27 percent between 1960 and 2015, with the expectation of a continued rise in years to come, according to the researchers.

Higher concentrations of carbon dioxide in the atmosphere equals less vital nutrients in crops like rice and soybeans

Year - round ice - free conditions across the surface of the Arctic Ocean could explain why Earth was substantially warmer during the Pliocene Epoch than it is today, despite similar concentrations of carbon dioxide in the atmosphere.

Helpfully, during the mid-Pliocene warm spell, Earth had the same concentrations of carbon dioxide in the atmosphere and the same average 2 to 3 C (3.6 to 5.4 F) rise in global temperatures we're headed toward.

The draft report says that a doubling of the preindustrial concentration of carbon dioxide in the atmosphere is likely to reduce global GDP by between 1 and 3 per cent by the middle of the next century.

He says ``... concentrations of carbon dioxide in the atmosphere eventually would reach levels higher than in the Pliocene era, more than 2.5 million years ago...» Surely this is an error.

Some assessments track only concentrations of carbon dioxide in the atmosphere; others consolidate the influence of all greenhouse gases into a «carbon dioxide equivalent» measurement.

(05/13/2013) Even as concentrations of carbon dioxide in the atmosphere hit 400 parts per million (ppm) for the first time in human history last week, a new study in Nature Climate Change warns that thousands of the world's common species will suffer grave habitat loss under climate change.

On Monday, the World Meteorological Organisation said concentrations of carbon dioxide in the atmosphere rose last year at a record speed to reach 403.3 parts per million - a level not seen since the Pliocene era three to five million years ago.

Martin Rees, president of the Royal Society said, «Everybody knows that the increasing concentration of carbon dioxide in the atmosphere leads to climate change.

Fossil fuel burning is responsible for climate change because of the way in which an increased concentration of carbon dioxide in the atmosphere alters the planet's energy budget and makes the surface warmer.

The shocking fact is that this optimistic scenario would see concentrations of carbon dioxide in the atmosphere reach 650 ppm (the pre-industrial level was 280 ppm and it now stands at 392 ppm).

All were eminent; Dr. Keeling was the first to chart increased concentrations of carbon dioxide in the atmosphere — a rise known today as the Keeling curve.

The permafrost is a vast reservoir of ancient carbon, protected from decay by microorganisms simply by its frozen state: it becomes increasingly vulnerable as the world warms, as humans burn fossil fuels and dump ever greater concentrations of carbon dioxide in the atmosphere.

«A higher concentration of carbon dioxide in our atmosphere would aid photosynthesis, which in turn contributes to increased plant growth,» Rep. Lamar Smith (R — Texas) wrote in an op - ed last year.

Year - round ice - free conditions across the surface of the Arctic Ocean could explain why Earth was substantially warmer during the Pliocene Epoch than it is today, despite similar concentrations of carbon dioxide in the atmosphere, according to new research carried out at the University of Colorado Boulder.

The original suggested onset was the end of the eighteenth century, when the European industrial revolution's large - scale coal - burning triggered rising concentrations of carbon dioxide in the atmosphere.

During the Eocene, the concentration of carbon dioxide in the atmosphere was more than 560 parts per million, at least twice preindustrial levels, and the epoch kicked off with a global average temperature more than 8 degrees Celsius — about 14 degrees Fahrenheit — warmer than today, gradually cooling over the next 22 million years.

The factors they compared were temperature, sea - level rise and concentrations of carbon dioxide in the atmosphere.

As trees die and decompose, the concentrations of carbon dioxide in the atmosphere will increase, potentially speeding up climate change during tropical droughts.»

My interest in carbon dioxide concentration as a variable evolved from the recognition that the rapidly changing concentration of carbon dioxide in the atmosphere was likely to disrupt the relationships between plant physiological processes and adaptations to the environment that I had been studying.

The concentrations of carbon dioxide in the atmosphere could still be out of whack from the emissions resulting from the burning of all those fossil fuels in just the last few decades.

In 2005 the concentration of carbon dioxide in the atmosphere, 380 parts per million, is a third higher than in preindustrial times.

In 1959 physicist Gilbert Plass warned in Scientific American that increasing concentrations of carbon dioxide in the atmosphere was causing climate change.

But talking about 2020 is crucial to climate scientists, who see quick emission cuts as important as the concentration of carbon dioxide in the atmosphere in four decades.

Although the concentration of carbon dioxide in the atmosphere is much higher, at around 385 parts per million, methane is a worry as it is much better than carbon dioxide at locking in heat from solar radiation.

One possible explanation is that there was a slow decline in the concentration of carbon dioxide in the atmosphere, starting around 3 million years ago.

Computer models predict that the incidence of potentially lethal climatic conditions will increase when the concentration of carbon dioxide in the atmosphere reaches double the preindustrial level.

These are, respectively, the upper «safe» concentration of carbon dioxide in the atmosphere, and the upper «safe» limit of average global temperature increase.

Earth's oceans play a major role in limiting the concentration of carbon dioxide in the atmosphere.

Without alternatives to fossil fuel, we are committed to steadily increasing the concentration of carbon dioxide in the atmosphere and the oceans, with the attendant deleterious effects on greenhouse gas accumulation in the atmosphere and ocean acidification.

The concentration of carbon dioxide in the atmosphere has permanently passed 400 ppm for the first time in human history.

At the same time, concentrations of carbon dioxide in the atmosphere have been rising.

Even if the Princeton wedges of avoided emissions were achievable, that would only stabilize annual emissions, meaning the real heavy lifting — stabilizing the concentration of carbon dioxide in the atmosphere — still lay far ahead.

Below you can read some of the input I received on Australia's booming exports of coal (and carbon dioxide emissions) and how they relate to the challenge of stabilizing the concentration of carbon dioxide in the atmosphere some time this century.

This pattern of warmer below, colder above is just what we've observed over the last century as the concentration of carbon dioxide in the atmosphere has increased.