Bright white areas to the south, including the Hellas impact basin at extreme lower right, are
covered by carbon dioxide frost.
Not exact matches
Rebreathing exhaled
carbon dioxide trapped near an infant's airway
by bedding has been suggested as a possible mechanism for the occurrence of SIDS in at - risk infants and may occur with the use of soft bedding,
covering the head during sleep, and use of the prone sleep position.9 - 12 Inadequate ventilation might facilitate pooling of
carbon dioxide around a sleeping infant's mouth and nose and might increase the likelihood of rebreathing.13, 14 Increased movement of air in the room of a sleeping infant may potentially decrease the accumulation of
carbon dioxide around the infant's nose and mouth and reduce the risk of rebreathing.10 A recent study15 showing a significantly reduced risk of SIDS associated with pacifier use further supports the importance of rebreathing as a risk factor for SIDS.
The lianas monopolize resources like
carbon dioxide — which is rising
by 0.5 percent per year globally — eventually
covering some trees and pulling them down.
For almost 100 years, Science News has been reporting the latest advances in science, such as this week's
cover story
by reporter Laurel Hamers, «When bogs burn, the environment takes a hit,» on how the increased frequency of bog fires worldwide is becoming a surprisingly large source of air pollution and climate - warming
carbon dioxide.
Fossil fuels cost a lot of money and [have] a lot of climate impact; that's something we haven't
covered either, but this plan will also reduce
carbon dioxide emissions to about a third of what they are now [
by] 2050, assuming some level of growth as well.
Through reduced tillage in farming — no - till being the prime example — and systems using
cover crops and residue, those are major ways agriculture can reduce the emission of greenhouse gases because
carbon dioxide is being taken up
by the plant materials and stored in the soil.
Images from MRO's High Resolution Imaging Science Experiment (HiRISE) camera show sand dunes with linear gullies
covered by carbon -
dioxide frost during the Martian winter.
The location of the linear gullies is on dunes that spend the Martian winter
covered by carbon -
dioxide frost.
However,
carbon dioxide fertilization isn't the only cause of increased plant growth — nitrogen, land
cover change and climate change
by way of global temperature, precipitation and sunlight changes all contribute to the greening effect.
The current five - year plan,
covering 2011 to 2015, requires the country to reduce the
carbon dioxide emitted per unit of GDP
by 17 per cent
by 2015.
The «obvious solution», he said, was to limit the CDM to
carbon dioxide, rather than the six greenhouse gases
covered by the UN's Kyoto Protocol.
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.»
Another instance of the illusory precision in Lomborgs energy chapter that I mentioned in my Scientific American critique and which Lomborg seems to think is
covered by his «evenly distributed errors» defense is his statement that «the costs of
carbon dioxide» are «probably0.64 cents per kWh [kilowatt - hour]».
-- For a
covered entity described in section 700 (13)(C), 1 emission allowance for each ton of
carbon dioxide equivalent of fossil fuel - based
carbon dioxide, nitrous oxide, or any other fluorinated gas that is a greenhouse gas (except for nitrogen trifluoride), or any combination thereof, produced or imported
by such
covered entity during the previous calendar year for sale or distribution in interstate commerce.
-- The Administrator shall issue one offset credit to an offset project developer for each ton of
carbon dioxide equivalent that the Administrator has determined has been reduced, avoided, or sequestered during the period
covered by a verification report submitted in accordance with section 736, only if --
-- Where
carbon dioxide (or another greenhouse gas) generated
by a
covered entity is used as an input in the production of algae - based fuels, the Administrator shall ensure that emission allowances are required to be held either for the
carbon dioxide generated
by a
covered entity that is used to grow the algae or for the portion of the
carbon dioxide emitted from combustion of the fuel produced from such algae that is attributable to
carbon dioxide generated
by a
covered entity, but not for both.
(Note vast areas of the high latitude oceans were
covered by ice, during the coldest period and could hence no longer absorb
carbon dioxide.)
Now as vast areas of land which are currently forested, were
covered by the glacial period ice sheets, the temperate forest is no longer using
carbon dioxide which adds
carbon dioxide to the atmosphere.
I understand why China and India believe «any extra costs for them to divert from established trajectories for
carbon dioxide emissions as they pursue prosperity must be
covered by the established industrial powers, which still have many times greater emissions on a per - capita basis».
Essentially, China and India, the emerging giants in the global greenhouse, are saying that any extra costs for them to divert from established trajectories for
carbon dioxide emissions as they pursue prosperity must be
covered by the established industrial powers, which still have many times greater emissions on a per - capita basis and spent a century freely adding greenhouse gases to the atmosphere in building their wealth.
Now as vast areas of land which are currently forested, were
covered by the glacial period ice sheets, the temperate forest is no longer using
carbon dioxide which adds
carbon dioxide to the atmosphere.
Gu's research indicates that the maximum uptake of
carbon dioxide by plant ecosystems occurs when cloud
cover is about 50 percent.
Requires the EPA Administrator,
by 2025 and every five years thereafter, to review the standards for new
covered EGUs and reduce the maximum
carbon dioxide emission rate for new
covered EGUs to a rate that reflects the degree of emission limitations achievable through the application of the best system of emission reduction that has been adequately demonstrated.
-- Not later than 2025 and at 5 - year intervals thereafter, the Administrator shall review the standards for new
covered EGUs under this section and shall,
by rule, reduce the maximum
carbon dioxide emission rate for new
covered EGUs to a rate which reflects the degree of emission limitation achievable through the application of the best system of emission reduction which (taking into account the cost of achieving such reduction and any nonair quality health and environmental impact and energy requirements) the Administrator determines has been adequately demonstrated.
«(VII) the estimated value of the
carbon dioxide and other emission reductions that will be achieved
by virtue of the higher energy efficiency of the
covered products resulting from the imposition of the standard;
«(A) the tons of
carbon dioxide equivalent of greenhouse gas emissions or attributable greenhouse gas emissions for which the owner or operator of a
covered entity failed to demonstrate compliance under section 722 on the deadline;
by
Vermont is the only state not
covered by the Obama administration's sweeping new plan to cut
carbon dioxide emissions
by 30 percent over the next 15 years, but the state will still benefit
by working with other states to meet the goals.
-- The Administrator shall issue one offset credit to an offset project developer for each ton of
carbon dioxide equivalent that the Administrator has determined has been reduced, avoided, or sequestered during the period
covered by a verification report submitted in accordance with section 736, only if --
-- Where
carbon dioxide (or another greenhouse gas) generated
by a
covered entity is used as an input in the production of algae - based fuels, the Administrator shall ensure that emission allowances are required to be held either for the
carbon dioxide generated
by a
covered entity that is used to grow the algae or for the portion of the
carbon dioxide emitted from combustion of the fuel produced from such algae that is attributable to
carbon dioxide generated
by a
covered entity, but not for both.
1,115 megatonnes of
carbon dioxide emissions are
covered by the schemes, making China the second largest
carbon market in the world.
It
covers carbon dioxide (CO2) emissions from key industry sectors, such as energy, paper, metal and cement and regulates approximately 11,400 installations owned
by ca. 5,000 companies across Europe.
Thawing permafrost also delivers organic - rich soils to lake bottoms, where decomposition in the absence of oxygen releases additional methane.116 Extensive wildfires also release
carbon that contributes to climate warming.107, 117,118 The capacity of the Yukon River Basin in Alaska and adjacent Canada to store
carbon has been substantially weakened since the 1960s
by the combination of warming and thawing of permafrost and
by increased wildfire.119 Expansion of tall shrubs and trees into tundra makes the surface darker and rougher, increasing absorption of the sun's energy and further contributing to warming.120 This warming is likely stronger than the potential cooling effects of increased
carbon dioxide uptake associated with tree and shrub expansion.121 The shorter snow -
covered seasons in Alaska further increase energy absorption
by the land surface, an effect only slightly offset
by the reduced energy absorption of highly reflective post-fire snow -
covered landscapes.121 This spectrum of changes in Alaskan and other high - latitude terrestrial ecosystems jeopardizes efforts
by society to use ecosystem
carbon management to offset fossil fuel emissions.94, 95,96
The body found that, without additional action, emissions of the greenhouse gases
covered by the Kyoto Protocol - namely
carbon dioxide, methane, nitrous oxide, sulphur hexafluoride, PFCs and HFCs - are likely to rise
by 25 - 90 %
by 2030 over their levels in 2000.
Many recent news stories have
covered health problems caused
by indoor air quality, so monitoring devices that can measure temperature, humidity and levels of
carbon dioxide and VOC (volatile organic compounds) can be useful in many offices and homes.