Sentences with phrase «about carbon dioxide in»

You're having all these weighty arguments amongst yourselves, AGW v CAGW, about carbon dioxide in a world which is the most ludicrous fictional scenario that could be imagined.

Calculation: THE NUMBERS ABOUT CARBON DIOXIDE IN OUR ATMOSPHERE Here are the calculations, based on information obtained directly from the Royal Dutch Meteorological Institute in De Bilt, Holland (KNMI).

Until recently, these trends were extremely difficult to calculate due to a lack of data about carbon dioxide in coastal waters.

Not exact matches

The reason is that the proportion of oxygen in the atmosphere (21 per cent) is very much larger that the proportion of carbon dioxide (about 0.03 per cent).

In the original recipe you allow the dough to rest for about 18 hours, and as the yeast is creating movement through the dough with the carbon dioxide bubbles it produces.

What current atmospheric carbon dioxide concentration tells us about the need to stabilise the global climate and the need for a step change in government, city and business action.

Methane is about 23 times more potent at trapping heat in our environment than carbon dioxide.

It will see the UK pass on information about its experiences in the EU emissions trading scheme to California, which is the seventh largest economy in the world and the 12th largest emitter of carbon dioxide.

During the Eocene, the concentration of carbon dioxide in the atmosphere was more than 560 parts per million, at least twice preindustrial levels, and the epoch kicked off with a global average temperature more than 8 degrees Celsius — about 14 degrees Fahrenheit — warmer than today, gradually cooling over the next 22 million years.

«For example, [measuring] chlorophyll a will give you information about how much biological activity is going on, and eventually more information about the concentration of carbon dioxide within the ocean and the atmosphere,» said Yoshihisa Shirayama, executive director of research at the Japan Agency for Marine - Earth Science and Technology in Tokyo.

The power and reach of the 60 - watt incandescent bulb About 20 percent of carbon dioxide emissions associated with buildings in the United States are related to indoor lighting.

Globally, about 32 million acres of forest is destroyed each year, mostly in the tropics and, because trees absorb carbon dioxide, deforestation is responsible for some 15 percent of all greenhouse gas emissions.

It also stirred confusion about the governor's legal authority and what will happen to the carbon trading program, which caps utility carbon dioxide emissions in 10 Northeastern and mid-Atlantic states, at a time when national climate legislation appears dead on Capitol Hill.

About 2.7 billion years ago, photosynthetic algae in the oceans started making their mark, taking in carbon dioxide as fuel and sending the by - product — oxygen — skyward.

Meanwhile, the roughly 33,000 airplanes that fly in and out of the airport each month emit about 800,000 tons of carbon dioxide.

The team published the results in Science in 2016, reporting that the device was about 10 times as efficient as plants at removing carbon dioxide from the air.

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.

The researchers detected a «significant regional flux» of methane, a greenhouse gas with about 30 times the warming potential of carbon dioxide over a 100 - year period, coming from an area of gas wells in southwestern Pennsylvania.

Current releases of the carbon contained in carbon dioxide total about 10 billion tons per year.

Bean and Kempton, meanwhile, are interested in detailing what a statistical census of biologically significant gases such as oxygen, carbon dioxide and ozone could reveal about planetary habitability.

Despite the size of the bloom, however, the plankton did not take in a record - breaking amount of carbon dioxide — only about 20 % more carbon than that part of the ocean sequesters biologically each year.

Kourosh Kalantar - Zadeh, an engineer at the Royal Melbourne Institute of Technology in Australia, and his colleagues built plastic capsules about 2.5 centimeters long — about as long as a Jolly Rancher hard candy — that sniff out carbon dioxide, hydrogen and oxygen gas molecules in the gut.

In comparison, the burning of fossil fuels produced about 8.7 billion tonnes of carbon dioxide globally last year.

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.»

«For comparison, the amount of carbon dioxide in the atmosphere in 2005 was about 380,000 ppbv — so carbon dioxide absorption of escaping infrared radiation is much more important,» Rowland adds.

The funny thing about Rubisco is that it first evolved in bacteria about 3 billion years ago, a time when Earth's atmosphere had more abundant carbon dioxide compared to today.

Production and preparation both contribute about 50 pounds of carbon dioxide, but it varies from state to state and house to house,» said Paul Fischbeck, professor of social and decisions sciences in the Dietrich College of Humanities and Social Sciences.

Because methane, which makes up about 95 percent of the natural gas in pipelines, is about 25 times more potent as a greenhouse gas than carbon dioxide, the leakage raises a troubling climate question: How clean is natural gas?

«If the natural concentration had been a factor of two or more lower, the climate impacts of fossil fuel carbon dioxide release would have occurred about 50 or more years sooner, making it much more challenging for the developing human society to scientifically understand the phenomenon of humanmade climate change in time to prevent it,» he says.

Coal - burning power plants in the United States emit about 2.1 billion tons of carbon dioxide each year — nearly 17 percent of worldwide coal emissions — and finding technologies that reduce those emissions in the United States and China, which burns even more coal than we do, is crucial to combating global warming.

Fischetti: We hear about several different sorts of key numbers, and that's part per million of carbon dioxide or the global forcing, which is in watts per square meter, and give us the basic numbers and which ones matter most?

Plug - ins use about a third of the fuel that a standard hybrid does, which means that the cars themselves emit less carbon dioxide and other pollutants.

«We argue that it was the establishment of the modern deep ocean circulation — the ocean conveyor — about 2.7 million years ago, and not a major change in carbon dioxide concentration in the atmosphere that triggered an expansion of the ice sheets in the northern hemisphere,» says Stella Woodard, lead author and a post-doctoral researcher in the Department of Marine and Coastal Sciences.

Rohling: Okay, so I think the first number, really, to take into account is the preindustrial carbon dioxide value, which is round about 280 parts per million in the atmosphere.

Eliminating 1 tonne of carbon dioxide in Decin will cost about $ 5, one - third the estimated cost of achieving the same reduction at a power plant in Wisconsin, says Richard Abdoo, chief executive of Wisconsin Electric.

It takes 243 gallons (920 liters) of diesel fuel to trawl about 1.1 tons (one metric ton) of the shellfish, according to Dalhousie University in Halifax, Nova Scotia, making shrimp one of the most energy - intensive wild seafood harvests, with a footprint of 5,395 pounds (2,447 kilograms) of carbon dioxide per metric ton even before processing and transportation are taken into account.

The last time researchers believe the carbon dioxide concentration in the atmosphere reached 400 ppm — between 3 and 5 million years ago during the Pliocene — Earth was about 3.5 to 9 degrees Fahrenheit warmer (2 to 5 degrees Celsius) than it is today.

Oceans play a key role in mitigating climate change, in part because they absorb about 25 % of global carbon - dioxide emissions from fossil - fuel burning and deforestation, he said.

The crash of a NASA mission this week to monitor the flows of carbon dioxide in the atmosphere is a big blow to climate scientists hoping to learn more about the fate of CO2 streams in the air.

But talking about 2020 is crucial to climate scientists, who see quick emission cuts as important as the concentration of carbon dioxide in the atmosphere in four decades.

A detailed series on the U.S. Environmental Protection Agency running this week in The Philadelphia Inquirer includes new information about how the agency had initially decided to regulate carbon dioxide.

They used two different climate models, each with a different sensitivity to carbon dioxide, to project California's future under two scenarios: an optimistic one, in which we only double the level of carbon dioxide in the atmosphere — since the 19th century we've already increased it by about a third — and a pessimistic scenario, in which we more than triple CO2.

Its mixing ratio in the atmosphere is lower than that of CO2 (about 4 parts per trillion ppt in 1990 versus 365 ppm of carbon dioxide), its contribution to global warming is accordingly low.

The annual consumption of gasoline in the United States, about 131 billion gallons of gas, is equivalent to 25 quadrillion pounds of prehistoric biomass and releases some 2.6 trillion pounds of carbon dioxide.

Production of organic corn resulted in the greatest nitrous oxide emissions and represented about 8 % of total GHG emission; corn also had the highest carbon dioxide emissions per hectare.

Total annual production emissions, averaged over five years, would equal about 100 grams of carbon dioxide per megajoule — which is 7 percent greater than gasoline emissions and 62 grams above the 60 percent reduction in greenhouse gas emissions as required by the 2007 Energy Independence and Security Act.

Doubling of the carbon dioxide concentration will cause global plant photosynthesis to increase by about one third, according to a paper published in the journal Nature.

«What's different [about carbon dioxide] is the scale and the disruption in the energy system from having to transition from carbon - intensive fuels to carbon neutrality,» he added.

But, noted Nancy Knowlton of the Smithsonian Institution National Museum of Natural History in Washington, D.C., «If we do want to have reefs around by 2050, we are going to have to do something about carbon dioxide» to slow global warming and acidification.

Though the overall impact of tourism on climate change is difficult to assess, the United Nation's World Tourism Organization says our vacations contribute about 5 percent of global carbon dioxide emissions, which reached 8.47 billion metric tons in 2007.