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.