Sentences with phrase «rising human carbon dioxide»

Sea snails that leap to escape their predators may soon lose their extraordinary jumping ability because of rising human carbon dioxide emissions, a team of international scientist...

Not exact matches

Rising anthropogenic, or human - caused, carbon dioxide in the atmosphere may have up to twice the impact on coastal estuaries as it does in the oceans because the human - caused CO2 lowers the ecosystem's ability to absorb natural fluctuations of the greenhouse gas, a new study suggests.

Politics of deferred gratification Under one of the additional scenarios, known as RCP 4.5, humans take longer to reduce greenhouse gas emissions but eventually do so, and under the other, known as RCP 8.5, carbon dioxide concentrations continue to rise through 2100.

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.

The ability of the oceans to take up carbon dioxide can not keep up with the rising levels of greenhouse gases in the atmosphere, which means carbon dioxide and global temperatures will continue to increase unless humans cut their carbon dioxide emissions.

«Today, we are facing rising carbon dioxide contents in the atmosphere through human activities, and the amount of oxygen in the ocean may drop correspondingly in the face of rising seawater temperatures,» Lyons said.

Although the earth has experienced exceptional warming over the past century, to estimate how much more will occur we need to know how temperature will respond to the ongoing human - caused rise in atmospheric greenhouse gases, primarily carbon dioxide.

However, this has to a large extent not led to immediate action to address the severity of the imminent crisis of rising global temperatures and associated problems due to the increase in atmospheric carbon dioxide concentrations due to human activity.

And such techniques might be capable, at best, of sequestering one billion metric tons of carbon dioxide per year (based on the extent of iron - deficient waters around the globe), compared with annual human emissions of more than eight billion metric tons and rising.

Human - induced changes to Earth's carbon cycle — for example, rising atmospheric carbon dioxide and ocean acidification — have been observed for decades.

«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.

These are just a few obvious examples, but because the future Fox News pundit was talking about climate change let's consider something that is indisputable: the measured rise of carbon dioxide in the earth's atmosphere is numerically consistent with that predicted from the output of human industrial activity.

Climate signals are not clear enough to attribute the event to rising levels of carbon dioxide, but human activity may have contributed to its calving nonetheless.

Human population growth and the rise in atmospheric carbon dioxide (CO2) concentration have growth exponentially with industrialization.

The amount of carbon dioxide in our atmosphere now far exceeds the natural range of the past 650,000 years, and it is rising very quickly due to human activity.

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.

The National Oceanic and Atmospheric Administration is reporting that the concentrations of carbon dioxide and methane, the two most important greenhouse gases released through human activities, rose in 2008.

Currently, although only 20 % of the accumulated anthropogenic rise in carbon dioxide originates from land use and land cover change (LULCC), 40 % of the net positive radiative forcing from human activities is attributable to LULCC sources (Ward et al 2014).

The take - home message, directly in sync with the core findings of the last two assessments from the Intergovernmental Panel on Climate Change, can be distilled to a fairly straightforward statement: Rising concentrations of carbon dioxide will result in long - lasting warming that will progressively produce more harmful impacts on conditions and systems that influence human wellbeing.

J.E.N. Veron, former chief scientist of the Australian Institute of Marine Science, writes that human pollution of the water, as well as human - generated carbon dioxide emissions which are causing ocean acidification and rising ocean temperatures are rapidly killing off corals.

So far, all of the criteria air pollutants under the agency's purview — substances from lead to sulfur dioxide — have a direct impact on human health and welfare, while risks from the carbon dioxide's buildup remain indirect, through the rising influence on climate.

Appearing increasingly detached from reality to independent scientists, the UN claimed in its latest global - warming report to be 95 percent sure that human emissions of carbon dioxide were to blame for rising temperatures.

SciDev.Net: LIMA - Rising levels of carbon dioxide (CO2) in the atmosphere caused by human - driven emissions might lead to larger sweet potatoes, a staple food for many African and Asian countries, research reveals.

Both past and future human emissions of carbon dioxide will continue to contribute to warming and sea level rise for more than a millennium, due to the long time it takes for this gas to disappear from the atmosphere.

«This marks the fact that humans burning fossil fuels have caused global carbon dioxide concentrations to rise more than 120ppm since pre-industrial times,» Pieter Tans, lead scientist of NOAA's greenhouse gas network, said in an interview to The Guardian Wednesday.

When we talk about climate change, we're talking about the scientifically observable — and increasingly severe — changes in global climate patterns that became apparent in the mid-to-late twentieth century and can be attributed to the rising levels of atmospheric greenhouse gases (carbon dioxide, in particular) produced by human activities like burning fossil fuels.

While the greenhouse effect is undeniably real, and while most scientists agree that there has been a rise in global temperatures caused in some part by human emissions of carbon dioxide, no one knows how much more warming will occur this century or whether it will be dangerous.

The Rising Stakes of Escalating Greenhouse Gas Emissions in 2013 In the spring of 2013, the Mauna Loa Observatory in Hawaii reported that the concentration of carbon dioxide in Earth's atmosphere had exceeded 400 parts per million for the first time in human history; indeed, for the first time in millions of years.

Some scientists have been skeptical of the Paris target for some time — simply because there's only a finite amount of carbon dioxide that humans can put in the air before the earth is committed to a 2 degree Celsius rise in temperature.

Scientists say it's apparent that human activity — namely burning coal, oil and natural gas — has been driving a rapid rise of carbon dioxide levels in the atmosphere.

The oceans are acting as a heat sink for rising temperatures and have absorbed about one - third of the carbon dioxide produced by human activities.

But although change in that vast watershed of western US and Mexico called the Great Basin is contemporaneous with the Industrial Revolution, and the rise of carbon dioxide levels in the atmosphere, other human activities may have triggered the dramatic alteration.

This is roughly the rise predicted by climate change scenarios in which humans go on burning fossil fuels, to deposit ever more carbon dioxide in the atmosphere.

Conversely, as atmospheric concentrations of carbon dioxide, methane, chlorofluorocarbons, and other absorbing gases continue to increase, in large part owing to human activities, surface temperatures should rise because of the capacity of such gases to trap infrared radiation.

Furthermore, the authors hail this as a harbinger of good things to come, explaining «the net effect of continued warming and rising carbon dioxide concentrations in the atmosphere is most likely to be beneficial to humans, plants and wildlife.»

The authors of the new report say «the net effect of continued warming and rising carbon dioxide concentrations in the atmosphere is most likely to be beneficial to humans, plants, and wildlife.»

And they add «the net effect of continued warming and rising carbon dioxide concentrations in the atmosphere is most likely to be beneficial to humans, plants and wildlife».

Although the earth has experienced exceptional warming over the past century, to estimate how much more will occur we need to know how temperature will respond to the ongoing human - caused rise in atmospheric greenhouse gases, primarily carbon dioxide.

First, no one I know disputes that the global climate has been warming over the past century and a half, that sea levels have indeed been rising, or that human activities, including carbon dioxide emissions, have and will continue to contribute «some influence.»

According to a GES press release, «the founders of GES made it their stated mission to share the good news about our adaptable climate; namely, that nature is growing stronger and greener as human activity causes the atmospheric carbon dioxide concentration to rise.

«No one I know disputes that the global climate has been warming over the past century and a half, that sea levels have indeed been rising, or that human activities, including carbon dioxide emissions, have and will continue to contribute «some influence.»

There is now widespread agreement among climate scientists that the earth is warming as a result of human activity, primarily due to rising levels of carbon dioxide and other heat trapping atmospheric gases created by burning fossil fuels.

The authors of the new report go on to say «the net effect of continued warming and rising carbon dioxide concentrations in the atmosphere is most likely to be beneficial to humans, plants, and wildlife.»

The new target: Naomi Oreskes who last week found her research used as a foil by some lawmakers in the U.S. House of Representatives to try and discredit the widely - accepted and growing view that there is a broad scientific consensus on the evidence of human - caused global warming caused by rising carbon dioxide emissions.

Undoubtedly, sea levels will continue to rise into the future, in part, from the earth's temperature increase as a result of human carbon dioxide emissions resulting from our use of fossil fuels.

In the latest attempt to cost the impact of rising carbon dioxide levels in the atmosphere, and the continuous rise in global average temperatures, all as a consequence of fossil fuel combustion and other human action, the economist Chris Hope of the University of Cambridge and the polar expert Kevin Schaefer of the University of Colorado have turned their sights on the Arctic.

NGOs argue for reductions to carbon dioxide emissions from human activities (i.e. anthropogenic CO2 emissions) because it is assumed that these emissions are causing the recent rise of carbon dioxide in the air.

The Mercer (1978) ``... a threat of disaster» paper introduced above was fraught with presumptions, guesswork, and spectacularly wrong predictions about the connections between fossil fuel consumption by humans and future carbon dioxide (CO2) parts per million (ppm) concentrations, the melting of polar ice sheets, and an impeding sea level rise disaster.

However wild some of them may look, experts say, forests from the deepest Amazon to the remotest reaches of Siberia are now responding to human influences, including the rising level of carbon dioxide in the air, increasing heat and changing rainfall patterns.