Sentences with phrase «by human carbon dioxide»

The IPCC - affiliated scientists have made guesses that the unknown climate components will dramatically accelerate the modest warming caused directly by human carbon dioxide emissions.
Global upper - ocean chemistry trends driven by human carbon dioxide emissions are more rapid than variations in the geological past.
In a press release boldly titled «Nature, Not Man, is Responsible for Recent Global Warming,» study coauthor Bob Carter claimed that the findings left «little room for any warming driven by human carbon dioxide emissions».
According to one of its authors, Bob Carter, the paper found that the «close relationship between ENSO and global temperature, as described in the paper, leaves little room for any warming driven by human carbon dioxide emissions».
Hence the irony in Bob Carter's conclusion «The close relationship between ENSO and global temperature leaves little room for any warming driven by human carbon dioxide emissions».
The close relationship between ENSO and global temperature, as described in the paper, leaves little room for any warming driven by human carbon dioxide emissions.

Not exact matches

The only real climate change solutions that I have seen are to reduce carbon dioxide in the air by having human activity emit less of it.
One - third of carbon dioxide emitted by humans enters the oceans, making seawater more acidic, the study noted.
There are the usual suspects — excess carbon dioxide, carbon monoxide, sulfur dioxide, nitrogen oxides, soot, and lead produced by human activity.
About 6000 years ago, levels of atmospheric carbon dioxide rose — and until now slash - and - burn by the 12 million humans on the planet at the time has been blamed.
Oceans are taking in about 90 percent of the excess heat created by human greenhouse gas emissions, but they're also absorbing some of the carbon dioxide (CO2) itself.
As humans emit more carbon dioxide into the atmosphere, more of the gas is absorbed by the oceans, gradually making the water more acidic.
Most carbon emissions linked to human activity are in the form of carbon dioxide gas (CO2), but other forms of carbon include the methane gas (CH4) and the particles generated by such fires — the tiny bits of soot, called black carbon, and motes of associated substances known as brown carbon.
The request also calls for cuts in international climate programs such as SilvaCarbon, a forest assistance program supported by the U.S. Geological Survey and the U.S. Forest Service, and they are all links in a chain that is working toward providing effective measures of human - caused carbon dioxide emissions.
Waiting with bated breath: Opportunistic orientation to human odor in the malaria mosquito, Anopheles gambiae, is modulated by minute changes in carbon dioxide concentration.
This is happening because humans have been producing carbon dioxide (for example, by running cars on gasoline) faster than plants can absorb it, which makes the Earth warmer — and much faster than has happened naturally in the past.
But the Southern Ocean plays a more benign role in the global carbon budget: Its waters now take up about 50 % of the atmospheric carbon dioxide emitted by human activities, thanks in large part to the so - called «biological pump.»
A study provides the first evidence that pollen production is significantly stimulated by elevated carbon dioxide in a grass species as a result of climate change, which may have significant impact on human health.
Over the last few centuries, the ocean has absorbed huge amounts of the carbon dioxide spewed into the atmosphere by human activities, such as burning fossil fuels.
At the most fundamental level, the ecological footprint incorporates six measurements — city cover, carbon dioxide pollution, farm fields, fisheries, forests and rangeland — to reveal «the aggregate area of land and water ecosystems required by specified human populations to produce the ecosystem goods and services they consume and to assimilate their carbon waste.»
Kyoto regulates all sources of carbon dioxide as well as other greenhouse gases, but reliable long - term data by country are available only for carbon dioxide from burning fossil fuels (which accounts for about two - thirds of the human contribution to global warming).
In July researchers from the National Oceanic and Atmospheric Administration published findings that the oceans store almost half the anthropogenic carbon dioxide — the CO2 produced by humans — released into the atmosphere.
(The ocean currently absorbs roughly half of the greenhouse gases, primarily carbon dioxide, that are released by human activity.)
«I agree that carbon dioxide is a greenhouse gas, that greenhouse gas concentrations in the atmosphere are increasing as a result of human activities — primarily burning coal, oil, and natural gas — and that this means the global mean temperature is likely to rise,» Ebell said in the statement released by CEI yesterday.
The planet's average surface temperature has risen about 1.8 degrees Fahrenheit (1.0 degree Celsius) since the late - 19th century, a change largely driven by increased carbon dioxide and other human - made emissions into the atmosphere.
Fake paper fools global warming naysayers The man - made - global - warming - is - a-hoax crowd latched onto a study this week in the Journal of Geoclimatic Studies by researchers at the University of Arizona's Department of Climatology, who reported that soil bacteria around the Atlantic and Pacific oceans belch more than 300 times the carbon dioxide released by all fossil fuel emission, strongly implying that humans are not to blame for climate change.
Scientists today announced that they have crafted a bacterial genome from scratch, moving one step closer to creating entirely synthetic life forms — living cells designed and built by humans to carry out a diverse set of tasks ranging from manufacturing biofuels to sequestering carbon dioxide.
This effect is caused by increased levels of carbon dioxide, chlorofluorocarbons and other gases in the air, many of them released by human activity.
While El Niño played a role in bumping up global temperatures during 2015 and 2016, the bulk of the warmth was due to the excess heat trapped by greenhouse gases emitted by humans over the past century, particularly carbon dioxide.
Over that period, humans increased the amount of carbon dioxide in the atmosphere by about 20 parts per million by volume.
As a gigantic carbon sink, the ocean has taken up about a third of the carbon dioxide released into the atmosphere by human activities.
Over that period, humans increased the amount of carbon dioxide in the atmosphere by about 15 parts per million by volume (ppmv), from approximately 295 to 310 ppmv.
However, the surface warming caused by human - produced increases in carbon dioxide, methane, and other greenhouse gases leads to a large increase in water vapor, since a warmer atmosphere holds more moisture.
Changing living conditions caused by climate change or ocean acidification — the decrease of ocean pH due to the uptake of human - induced carbon dioxide from the atmosphere — pose serious threats to marine organisms.
Developed for the Commonwealth Marine Science Event 2018, this publication is an initiative by UK scientists and international partners, led by Plymouth Marine Laboratory, providing evidence - based science for policy making on the impacts of increasing concentrations of carbon dioxide and other greenhouse gases on the ocean and human systems.
But there can be too much of a good thing: In the last 200 years, humans have added a lot of extra carbon dioxide to the atmosphere by burning fossil fuels like coal, oil and gas to produce energy.
Given that there is continual heating of the planet, referred to as radiative forcing, by accelerating increases of carbon dioxide (Figure 1) and other greenhouses due to human activities, why is the temperature not continuing to go up?
By its placement in the film, it appears that I am saying that since carbon dioxide exists in the ocean in such large quantities, human influence must not be very important — diametrically opposite to the point I was making — which is that global warming is both real and threatening in many different ways, some unexpected.
As a gigantic carbon sink, the ocean has taken up about a third of the carbon dioxide (CO2) released into the atmosphere by human activities.
Pupils should be taught about the Earth as a source of limited resources and the efficacy of recycling and the production of carbon dioxide by human activity and the impact on climate.
For years, many environmental groups and experts on the growing human contribution to the planet's heat - trapping greenhouse effect have sought to turn carbon dioxide into a commodity by giving it a rising price.
Right now, the sum of global emissions of carbon dioxide by 6.6 billion very - unequal humans is about 29 billion tons a year.
A new NASA visualization shows how heat - trapping carbon dioxide from human sources mixes and spreads around the planet, and in so doing recalls for me a stirring 1859 description of the atmosphere written by Matthew Fontaine Maury, widely considered America's first oceanographer.
Data from satellite observations «suggest that greenhouse models ignore negative feedback produced by clouds and by water vapor, that diminish the warming effects» of human carbon dioxide emissions.
Without the answer to these questions, how much carbon dioxide is put in the atmosphere by humans and what effect is it having, our actions will be random and have unknown effectiveness.
But given what I understand to be true, that greater warming has occured than in the distant past than is currently occurring, how can we be so sure we are examining all the right 20th century events, since these earlier warmings were clearly caused by events other than human driven carbon dioxide emissions?
Britain's Royal Society has published a helpful new collection of papers in Philosophical Transactions of the Royal Society B that provide fresh insights on how the global buildup of carbon dioxide released by human activities could affect ocean ecology.
Quick progress in curbing emissions of carbon dioxide, the main human - generated greenhouse gas, could be achieved by using capital from rich countries to help prevent the destruction of tropical forests (and resulting greenhouse - gas emissions), Mr. Gore said.
As the post explains, Broecker's 1975 paper appears to have been the first in the scientific literature to use the term «global warming» to describe climate change driven by the buildup of human - generated carbon dioxide.
In part, my article, «How We Ran Out of Airtime,» considers the current human - generated carbon dioxide buildup in relation to a tumultuous period of atmospheric disruption triggered by another life form some 2.4 billion years ago.
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