Sentences with phrase «high atmosphere carbon»

Geoengineering methods that don't remove carbon dioxide from the atmosphere don't undo the other effects of high atmosphere carbon - dioxide concentrations such as ocean acidification, and our ability to adequately control geoengineering with sunlight - reflecting particles is not certain.

Not exact matches

The tweets, which included one saying «Today, the amount of carbon dioxide in the atmosphere is higher than at any time in the last 650,000 years.

«Today, the amount of carbon dioxide in the atmosphere is higher than at any time in the last 650,000 years.

We know that the surface temperature worldwide is rapidly increasing, that the carbon dioxide levels in the atmosphere are at their highest levels in at least 200,000 years.

In principle, a controlled atmosphere high in carbon dioxide and low in oxygen content slows down the rate of respiration, which may extend shelf life of any respiring fruit during storage.

The rate of carbon emissions to the atmosphere is arguably the highest in 66 million years, when the (non-avian) dinosaurs slipped off this mortal coil.

This change leads to a higher percentage of emitted carbon dioxide remaining in the atmosphere, which then further accelerates global warming.

As temperatures rise due to higher carbon dioxide in the atmosphere, silicate - weathering rates are hypothesized to increase and remove carbon dioxide from the atmosphere faster.

«A higher concentration of carbon dioxide in our atmosphere would aid photosynthesis, which in turn contributes to increased plant growth,» Rep. Lamar Smith (R — Texas) wrote in an op - ed last year.

Higher concentrations of carbon dioxide in the atmosphere equals less vital nutrients in crops like rice and soybeans

By releasing carbon dioxide higher in the atmosphere, airplanes allow the molecule more time to trap heat, also contributing via contrails and other chemically active gases, the IPCC notes.

Also associated with this event are high levels of carbon dioxide in the atmosphere, which are linked to elevated ocean and atmospheric temperatures.

Higher lake temperatures may speed the conversion of carbon - rich organic matter in lake sediments into methane and carbon dioxide, gases that once released into the atmosphere could exacerbate global warming.

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.

Scientists believe that the different pattern of deep ocean circulation was responsible for the elevated temperatures 3 million years ago when the carbon dioxide level in the atmosphere was arguably what it is now and the temperature was 4 degree Fahrenheit higher.

Such one - step oxygen formation could be happening now as carbon dioxide increases in the region of the upper atmosphere, where high energy vacuum ultraviolet light from the Sun hits Earth or other planets.

The research focused on a time that marked a change between a period of high carbon - dioxide levels in the atmosphere similar to modern day and much lower levels similar to the period before the industrial revolution, Pullen said.

Although the concentration of carbon dioxide in the atmosphere is much higher, at around 385 parts per million, methane is a worry as it is much better than carbon dioxide at locking in heat from solar radiation.

The process, which uses high temperatures and high pressure to turn plants into charcoal, releases little carbon dioxide into the atmosphere.

Revisiting Miller's unsuccessful experiment from the 1980s, Bada discovered that high acidity inhibits the formation of amino acids in a carbon dioxide atmosphere.

«The world desperately needs higher - efficiency gas turbines because the end result is millions of tons of carbon dioxide that's not going into the atmosphere,» said Citeno, noting that in the last 2 years, more than 50 percent of gas turbines manufactured at GE's Greenville plant were exported to other countries.

This is because large animals disperse large seeded plant species often associated with large trees and high wood density — which are more effective at capturing and storing carbon dioxide from the atmosphere than smaller trees.

«I don't feel that we should be anywhere higher than 550 parts per million of carbon dioxide in our atmosphere,» David King, chief scientific adviser to the UK government, said in a speech earlier in 2004.

Fossil - fuel use sends high levels of carbon dioxide into the atmosphere, but high levels of carbon dioxide aren't fingerprints of intelligent life, Shostak said — you can find tons of carbon dioxide on Venus.

For example, in higher latitudes such as northern Canada and Greenland, coastal waters usually act as carbon sinks, absorbing excess carbon dioxide from the atmosphere.

High temperatures increase weathering of silicate rocks, and this sucks carbon dioxide out of the atmosphere and into the oceans — a process aided by plants.

Their techno soundtrack maps musical notes to the Keeling Curve, a 58 - year record of carbon dioxide measured high in the atmosphere at the Mauna Loa Observatory in Hawaii.

One high - profile target, he says, should be reducing emissions of tiny soot particles, known as black carbon, that don't last long in the atmosphere but have an outsize impact on warming.

Hydrogen can also be split from water in high - temperature nuclear reactors or generated from fossil fuels such as coal or natural gas, with the resulting carbon dioxide captured and sequestered rather than released into the atmosphere.

Some scientists are linking the phenomenon to warmer waters and ocean acidification caused by high levels of carbon dioxide in the atmosphere.

The extreme carbon dioxide concentrations in the atmosphere caused the layer's surface temperature to rise as high as 50 °C.

The $ 465 - million Orbiting Carbon Observatory - 2 (OCO - 2) is designed to collect precise, high - resolution measurements of the carbon dioxide in Earth's atmosphere.

«If we don't stop burning fossil fuel and cutting down our tropical forests — all those human activities that maintain our society — we're going to reach incredibly high levels of carbon dioxide in our atmosphere.

CO2 concentrations would start to fall immediately since the ocean and terrestrial biosphere would continue to absorb more carbon than they release as long as the CO2 level in the atmosphere is higher than pre-industrial levels (approximately).

«Atmospheric CO2 is not a pollutant, it is in fact the very elixir of life,» Craig Idso, a science adviser to the CO2 Coalition, said during a panel discussion at CPAC exploring the benefits attached to higher levels of carbon dioxide in the atmosphere.

But climate modelers can't add enough carbon dioxide (a planet - warming greenhouse gas) to their Mars atmosphere models to get the temperature high enough to keep water from freezing.

I'll add this: during some times when the oceans became more acidic because of high carbon in the atmosphere — there was a huge mass extinction event.

Possible mechanisms include (iv) fertilization of phytoplankton growth in the Southern Ocean by increased deposition of iron - containing dust from the atmosphere after being carried by winds from colder, drier continental areas, and a subsequent redistribution of limiting nutrients; (v) an increase in the whole ocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient exported.

As the temperature rises, water vapor evaporates at a higher rate, raising the water vapor content of the atmosphere, further amplifying the the increased greenhouse effect of the additional carbon dioxide.

The coastal ecosystems of mangroves, seagrass meadows and tidal marshes mitigate climate change by sequestering carbon dioxide (CO2) from the atmosphere and oceans at significantly higher rates, per unit area, than terrestrial forests (Figure 1).

The definition uses atmospheric databases called HITRAN (high - resolution transmission molecular absorption) and HITEMP (high - temperature spectroscopic absorption parameters) that characterize planetary atmospheres in light of how both carbon dioxide and water are absorbed.

By studying carbon dioxide in planet's atmosphere via spectroscopy and measuring its orbit and mass more precisely for the first time since its discovery some 15 years ago, the team found that the planet's atmosphere appears to be cooler higher up, contrary to what was expected.

The ocean becomes less effective at absorbing carbon dioxide with a weakened AMOC and this can lead to higher quantities of the greenhouse gas in the atmosphere worsening global warming.

«Geoengineering» experiments proposed to reduce global warming by blocking sunlight with atmosphere - injected particles may cool the world but still leave carbon dioxide levels dangerously high, Stanford scientists say.

The misconception is understandable: we're steadily adding carbon dioxide and other greenhouse gases to the atmosphere, so it makes sense that the temperature should be going higher every year.

In the past 150 years, such activities have pumped enough carbon dioxide into the atmosphere to raise its levels higher than they have been for hundreds of thousands of years.

Now, if you have all this very cold, nearly freezing water surrounding these ice caps, sucking up carbon dioxide out of the polar atmosphere, at nearly the highest possible rate, 30 times faster than oxygen, and 70 times faster than nitrogen, doesn't it stand to reason that the air that remains might just have a lot less carbon dioxide in it than the atmosphere across the rest of the planet?

However, reams of peer - reviewed research, basic physics, the ability to track the specific chemical fingerprint of fossil fuel - driven carbon, and the fact that no models can replicate this century's warming without pumping up carbon dioxide and other greenhouse gases in the atmosphere give scientists confidence that human carbon emissions are driving the globe's temperature higher.

Life flourished in the Eocene, the Cretaceous and other times of high CO2 in the atmosphere because the greenhouse gasses were in balance with the carbon in the oceans and the weathering of rocks.

And as both researchers made clear, neither idea addresses the rising levels of carbon dioxide (CO2) in the atmosphere that is primarily to blamefor global warming and higher levels of oceanic acid.