Sentences with phrase «by human carbon»

The belief that warming is principally caused by human carbon emissions is completely unwarranted based on the evidence available.

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».

The study, published today in Nature, places the blame squarely on rising global temperatures driven by human carbon 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

Cave drawing, dinosarauer bones, carbon dating are all hoaxes, planted by humans in 1614.

Just by changing the way we farm, by stopping deep tilling, mono - cropping, and chemical fertilizer use — the Climate Collaborative estimates regenerative carbon farming practices could mitigate as much as 4 billion to 6 billion tons of CO2 equivalents a year or 10 percent to 12 percent of global human - caused emissions.

A vast majority of scientists believe climate change is caused by humans, they aren't biased against carbon.

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.

He will continue to deny climate change caused by human activity; and will use his committee position to attack the EPA move to cut power plant carbon emissions.

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.

By comparing the isotopic ratios of nitrogen and carbon in the lions» remains with that of contemporary lions, humans and herbivore prey, Justin Yeakel of the University of California, Santa Cruz, estimates the lions ate around 35 people.

By comparing the isotopic ratios of nitrogen and carbon in the lions» remains with that of contemporary lions, humans and herbivore...

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.

«By extracting wood from unmanaged forest and bringing these forests under production, humans released carbon into the atmosphere that would otherwise be stored in the biomass, litter, dead wood, and soil of the forest,» Naudts said.

Waiting with bated breath: Opportunistic orientation to human odor in the malaria mosquito, Anopheles gambiae, is modulated by minute changes in carbon dioxide concentration.

Unseen by the human eye, plants interact with many species of fungi and other microbes in the surrounding environment, and these exchanges can impact the plant's health and tolerance to stressors such as drought or disease, as well as the global carbon cycle.

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.»

In the first study of its kind, scientists have calculated the amount of carbon absorbed by the world's tropical forests and the amounts of greenhouse gas emissions created by loss of trees, as a result of human activity.

A unique form of carbon dating, made possible by the Cold War, suggests that new neurons rarely survive in the human olfactory bulb after birth

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.

And achieving any stabilization target — whether 2 degrees C of warming or 450 ppm or 1,000 gigatons of carbon added to the atmosphere by human activity — will require at least an 80 percent cut in emissions from peak levels by the end of this century and, ultimately, zero emissions over the long term.

In the new study, he and his colleagues sought to quantify those costs by mapping each corridor along with the estimated human occupancy and the environmental values, including endangered and endemic vertebrates, plant diversity, critical habitats, carbon storage, and climate - regulation services, inside a 50 - kilometer - wide band overlaid onto each corridor.

While the team's research showed no significant difference in bacterial degradation of organic matter from cleared or forested watersheds, Canuel says it did show that «organic carbon in runoff from watersheds affected by human activity is less susceptible to solar degradation than that from forested watersheds.»

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.

Further, carbon - dating charcoal bits unearthed from the cave floor suggests the cave was occupied — or at the very least visited — by humans as much as 37,000 years ago, researchers report online today in the Proceedings of the National Academy of Sciences.

A carbon threshold breached, commitments to brain science made, mystery neutrinos found and human evolution revised — these and other events highlight the year in science and technology as picked by the editors of Scientific American

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.»

The White House obviously accepts the science behind human - caused climate change, as was made clear again this week by its announcement of plans to cut carbon emissions from U.S.

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).

The report, written and reviewed by leading U.S. scientists as part of the National Climate Assessment, reinforces that warming temperatures and extreme weather around the globe are «extremely likely» to be the result of carbon pollution from human activities.

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.

Environment: The Conservative Party accepts human - induced global warming is a threat to the planet's life and pledges to reduce Britain's carbon emissions by 80 % by 2050.

Simply by breathing, humans have played a small part in the planet - wide balancing act called the carbon cycle throughout our existence.

(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.

Though these processes are influenced by factors including climate, vegetation and human activity, erosion is the main factor that affects the amount of carbon that ends up in rivers.

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.

These variations originate primarily from fluctuations in carbon uptake by land ecosystems driven by the natural variability of the climate system, rather than by oceans or from changes in the levels of human - made carbon emissions.

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.