Sentences with phrase «as atmospheric carbon»

So, if one is concerned about using forests as atmospheric carbon capture machines they should be allowed to grow to steady state and then left alone.

But since 1998, the rate of warming has been only 0.09 F (0.05 C) per decade — even as atmospheric carbon dioxide continues to rise at a rate similar to previous decades.

The growth of young Wisconsin trees increased by 60 %, and tree ring width expanded by almost 53 %, as atmospheric carbon dioxide concentrations increased from 316 ppm in 1958 to 376 ppm in 2003, researchers calculated.

With all of the negative effects predicted to occur in response to the ongoing rise in the air's carbon dioxide (CO2) concentration — a result of burning fossil fuels to produce energy — it is only natural to want to see what has been happening to our Earth's many ecosystems as the atmospheric carbon dioxide load has risen.

Average planetary temperatures increased by a «net» of 0.7 degrees C (1.3 F) between 1900 and 2000, as atmospheric carbon dioxide levels continued to rise — but not in a straight line: they rose 1900 - 1940, cooled 1940 - 1975 and warmed 1975 - 1995.

One can even imagine a time in the future when the fee will begin to decrease to some low price as atmospheric carbon dioxide levels return to a value believed to be sustainable (say 300 ppm?).

As atmospheric carbon dioxide levels rise, scientists look back four million years for answers on what to expect from climate Continue reading What Does 400 ppm Look Like?

Carlin's report argued that the information the EPA was using was out of date, and that even as atmospheric carbon dioxide levels have increased, global temperatures have declined.

Leading companies worldwide have come to understand that the damaging, often unaccounted - for repercussions of modern business — famously called externalities — such as atmospheric carbon, toxic materials and poisoned rivers, arise from design decisions and value judgements.

There is, therefore, much current interest in how coccolithophore calcification might be affected by climate change and ocean acidification, both of which occur as atmospheric carbon dioxide increases.

And it finds that, while this winter's unusually strong Arctic Oscillation - which funnels cold northern air to the East Coast and pulls warm mid-latitude air up to the Arctic - is predicted as atmospheric carbon dioxide levels rise, seasonal temperature anomalies associated with it aren't enough to blunt long - term warming trends.

Plants are the original carbon capture and storage solution: as atmospheric carbon dioxide levels rise, plants absorb more of the gas to fuel photosynthesis, and more carbon is stored in the soil.

As atmospheric carbon dioxide increases, the greenhouse gas is absorbed into ocean water, making it more acidic.

As atmospheric carbon dioxide levels increase, it becomes easier for trees to gather carbon dioxide and gives them a growing advantage over grasses.

Not exact matches

Also, Ice core samples that go back as far as 800,000 years have atmospheric gasses trapped within, so give a source to determine the make - up of the air, showing consistant level of carbon... directly refuting the AiG site that claimns the air has changed.

The Initiative is based on the finding that «4 ‰» annual growth rate of the soil carbon stock would make it possible to stop the present increase in atmospheric CO2 and aims to use a range of agricultural systems to sequester CO2 and store it in the ground as soil organic carbon (SOC).

This will reveal both the signatures of atmospheric ingredients such as water, methane, and carbon dioxide, and also how heat flows from the planet's dayside to its nightside.

The chemistry of the ocean is also affected, as the increased concentrations of atmospheric carbon dioxide will cause the ocean to become more acidic.

Random fluctuations and three physical reasons come into question to explain this: The model calculations are based on different amounts of radiant energy from the sun that impinge on Earth's surface and are stored as a result of the greenhouse effect, e.g. due to atmospheric carbon dioxide.

The indirect effects of rising atmospheric carbon dioxide (CO2) levels, such as changes in soil moisture and plant structure, can have a bigger impact on ecosystems than previously thought.

Freshwater such as lakes, though, receive various sources of carbon dioxide from decomposing organic and inorganic matter swept into them, which makes it hard for scientists to distinguish between the direct effects of rising atmospheric CO2 and these other elements.

Previous ocean sediment records suggest that, as the world slipped into the last glacial period, less carbon overall reached the sediments of the Southern Ocean, coinciding with declining atmospheric carbon dioxide.

As the world transitioned to glacial periods, on the other hand, atmospheric carbon dioxide decreased.

What happens when the world moves into a warm, interglacial period isn't certain, but in 2009, a paper published in Science by researchers found that upwelling in the Southern Ocean increased as the last ice age waned, correlated to a rapid rise in atmospheric carbon dioxide.

«The Paleocene - Eocene thermal maximum has stood out as a striking, but contested, example of how 21st - century - style atmospheric carbon dioxide buildup can affect climate, environments and ecosystems worldwide,» says Bowen, an associate professor of geology and geophysics at the University of Utah.

The new research shows atmospheric carbon levels returned to normal within a few thousand years after the first pulse, probably as carbon dissolved in the ocean.

Black carbon aerosols — particles of carbon that rise into the atmosphere when biomass, agricultural waste, and fossil fuels are burned in an incomplete way — are important for understanding climate change, as they absorb sunlight, leading to higher atmospheric temperatures, and can also coat Arctic snow with a darker layer, reducing its reflectivity and leading to increased melting.

Their results suggest a drop of as much as 10 degrees for fresh water during the warm season and 6 degrees for the atmosphere in the North Atlantic, giving further evidence that the concentration of atmospheric carbon dioxide and Earth's surface temperature are inextricably linked.

Environmentalists, many of whom believe that the term «clean coal» is an oxymoron, nonetheless view the project's cancellation as yet another indication that the Bush administration lacks the commitment required to reduce the rate of growth in atmospheric carbon dioxide emissions.

A new long - term field study shows that plants grow less under elevated carbon conditions owing to limitations in soil nutrients — bad news as atmospheric CO2 increases

The seven - day rainfall total from Harvey was as much as 40 percent higher than rainfall from a similar storm would have been decades ago, before human activity caused atmospheric carbon dioxide levels to spike, according to a study published yesterday in Geophysical Research Letters.

Today in Nano Letters, the group presents a process that turns atmospheric CO2 into carbon nanofibers similar to valuable materials used in industries such as aerospace, construction, and electronics.

Scientists on the Indian - German expedition, known as LOHAFEX, grew a 300 - km2 patch of algae in hopes that the plants» carbon would fall kilometers below, taking with it the atmospheric carbon it had pulled in during growth.

Previously, a massive outpouring of carbon about 56 million years ago had been proposed as faster than the current rate of net increase in atmospheric carbon.

«As remarkable as it is that climate can change that quickly naturally, what is even more remarkable is that some of the rates of change we're experiencing today — increases in atmospheric carbon dioxide for example — are faster than anything we've been able to find in the past several million years of geologic historAs remarkable as it is that climate can change that quickly naturally, what is even more remarkable is that some of the rates of change we're experiencing today — increases in atmospheric carbon dioxide for example — are faster than anything we've been able to find in the past several million years of geologic historas it is that climate can change that quickly naturally, what is even more remarkable is that some of the rates of change we're experiencing today — increases in atmospheric carbon dioxide for example — are faster than anything we've been able to find in the past several million years of geologic history.

A 12 - member working group of scientists, engineers, an economist, a social scientist, and a lawyer spent nearly a year examining technologies, such as fertilizing the oceans to suck down atmospheric carbon dioxide or orbiting giant mirrors to deflect sunlight.

This final number lies below earlier estimates from atmospheric tests and above land - based figures, which did not take into account such carbon sinks as woody debris, forest litter and soil.

Free oxygen is not bound to another element, as are the oxygen atoms in other atmospheric gases like carbon dioxide and sulfur dioxide.

Since methane can cause about 20 times as much atmospheric warming as carbon dioxide, curbing methane would help slow global warming.

The authors said the study underlines the increasing vulnerability of calcified animals to ocean acidification, which occurs as the ocean absorbs more atmospheric carbon emitted through the burning of fossil fuels.

As emissions from human activities increase atmospheric carbon dioxide, they, in turn, are modifying the chemical structure of global waters, making them more acidic.

When it comes to climate change science, researchers typically use atmospheric carbon dioxide levels from the late 19th century as a guideline, because that's when instrumentation was developed to accurately measure temperatures.

Nonetheless mature forests do play an important role in the global carbon cycle as stable carbon pools, and clearance of forests leads to an increase of atmospheric carbon dioxide levels.

As atmospheric CO2 levels increase from burning fossil fuels, this carbon dioxide is soaked up by seawater and makes the oceans more acidic.

As for the paper's conclusion that removing atmospheric carbon is necessary in order to achieve the 2 ˚C target, climate scientist Richard Moss of the Pacific Northwest National Laboratory's Joint Global Change Research Institute in College Park, Maryland, says that's a nearly impossible goal «with what we know about today.»

«OCO - 2 was designed to help locate and identify natural regional processes that serve as sources and sinks of atmospheric carbon dioxide, and how these vary with time and location,» explained Annmarie Eldering, a NASA scientist working on the mission.

The study argued that changes in the sun's radiation output played a major role in influencing shifts in Arctic air temperatures — a view at odds with mainstream climate science, which fingered atmospheric carbon dioxide as a bigger player.

Siberian surface rock was loaded with carbon, resulting in runaway global warming as atmospheric CO2 levels more than doubled.

«Changes in ocean conditions that affect fish stocks, such as temperature and oxygen concentration, are strongly related to atmospheric warming and carbon emissions,» said author Thomas Frölicher, principal investigator at the Nippon Foundation - Nereus Program and senior scientist at ETH Zürich.

The north Atlantic Ocean is globally important, as it is a sink for atmospheric carbon dioxide, said Eric Achterberg, chief scientist for the research cruise and lead author of the study.