Not exact matches
Alberta is boosting its use of renewable energy, closing power
plants that burn coal and in January
increased its tax on
carbon emissions by 50 percent.
The
plant is able to produce high - quality sustainable coffee with an
increased capsule collection recycling capacity and reduced
carbon emissions.
Organic farming puts
carbon back into soils by keeping them covered with
plants,
increasing crop diversity, composting and carefully planned grazing.
Smith et al. (1997) calculated a considerable potential
increase of soil
carbon when manure, straw - recycling, minimal tillage, reforestation and energy - saving
plant production are combined.
State officials argued that nuclear
plant closures would prompt an
increase in fossil fuel generation, in conflict with Cuomo's goal to reduce
carbon emmissions 40 percent by 2030.
The other side of the «green» argument against nuclear power is the fear by some climate scientists that
carbon emissions in New York could
increase by more than 31 million metric tons during the next two years, if a number of nuclear power
plants close.
My work is also directed toward determining why
plants exposed to elevated
carbon dioxide concentrations often have only a temporary
increase in growth rate, and toward determining what
plant characteristics might be most beneficial to the productivity and to the nutritional value of crops if atmospheric
carbon dioxide concentrations continue to rise.
The simulations suggested that the indirect effects of
increased CO2 on net primary productivity (how much
carbon dioxide vegetation takes in during photosynthesis minus how much
carbon dioxide the
plants release during respiration) are large and variable, ranging from less than 10 per cent to more than 100 per cent of the size of direct effects.
The researchers believe the greening is a response to higher atmospheric
carbon dioxide inducing decreases in
plant stomatal conductance — the measure of the rate of passage of
carbon dioxide entering, or water vapor exiting, through the stomata of a leaf — and
increases in soil water, thus enhancing vegetation growth.
As
plants in and around the lake grow larger and / or proliferate, the amount of organic
carbon available when they die and the rate at which they break down in soil
increases.
With more wind power, new nuclear
plants,
carbon capture and storage, and
increased efficiency, electricity industry group says significant greenhouse gas reductions possible
«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.
Global simulations conducted by the team found that microbial responses to enhanced root activity under rising CO2, while depending on
plant species, climate and soil mineralogy, led to a loss of global soil
carbon stocks that counteracted the additional
carbon storage resulting from
increased plant growth in many regions of the world.
Desalination
plants could help provide water in large population centers, but they also
increase carbon pollution, Davies said.
«We can
increase carbon sequestering and nitrogen fixation, or give Azolla's properties to other
plants.
According to Princeton University scientists Stephen Pacala and Robert Socolow's «wedge» strategy of climate change mitigation — which quantifies as a wedge on a time series graph various sets of efforts to maintain flat global
carbon emissions between now and 2055 — at least two million megawatts of new renewable energy will have to be built in the next 40 years, effectively replacing completely all existing coal - fired power
plants as well as accounting for
increases in energy use between now and mid-century.
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 admirable original bill is designed to
increase fuel efficiency in cars and light trucks, encourage production of biofuels, and provide funds to develop technology that will capture
carbon dioxide emissions from power
plants.)
The climate is warming in the arctic at twice the rate of the rest of the globe creating a longer growing season and
increased plant growth, which captures atmospheric
carbon, and thawing permafrost, which releases
carbon into the atmosphere.
In the past, some people have argued that the
increase in
carbon dioxide (CO2) in the air would be partially offset by an
increase in
plant growth, caused by that additional (CO2):
increased CO2 concentrations in the atmosphere should work like extra fertilizer and lead to
increased plant growth.
«The
increased carbon dioxide emissions from the nine government - approved
plants alone will more than cancel out all of the reductions in greenhouse gas emissions from China's recent investments in wind and solar electricity,» Yang said.
For many crops more
carbon dioxide means a rise in the rate of photosynthesis and, therefore, in growth; and with
increased carbon dioxide some
plants» use of water is more efficient, according to studies done in conventional glass greenhouses.
The
increased production in these crops is driven by higher precipitation predicted to occur in the central U.S., combined with higher concentrations of
carbon dioxide, which reduces a
plant's water requirements.
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.
One possible measure against steadily
increasing greenhouse gases is known as CCS (
carbon capture and storage): Here, the
carbon dioxide is captured, preferably directly at the power
plant, and subsequently stored deep in the ground or beneath the seabed.
And will be taken up by the
plant and will
increase the concentration of
carbon dioxide around RuBisCo inside the
plant and
increase its activity and photosynthetic yields.
The researchers have predicted that
increasing smog would prevent as much as 263 billion metric tons of
carbon from being taken out of the atmosphere by
plants over the past and coming century, though this depends on how tropical
plants respond to O3 pollution.
But if you only burn what you grow there's no net
increase in atmospheric CO2, because the
carbon contained in the
plants you burn came out of the atmosphere.
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.
Although
plant activity can
increase with warmer temperatures and higher
carbon dioxideconcentrations, the change in
carbon dioxide amplitude over the last 50 years is larger than expected from these effects.
It is widely accepted that
plant photosynthesis will
increase with
carbon dioxide, so long as nutrients, such as nitrogen and phosphorus, are not limiting.
The achievement will allow researchers to conduct further studies to determine how the hormone helps
plants respond to drought and other environmental stresses driven by the continuing
increase in the atmosphere's
carbon dioxide, or CO2, concentration.
Then, the volume flow in the
plant can be doubled, utilization of
carbon from biomass will
increase to nearly 100 %, and a large amount of usable waste heat will be produced by the catalyst (PtG operation).
Because
plants take up CO2 during photosynthesis, it has long been assumed that they will provide a large
carbon «sink» to help offset
increases in atmospheric CO2 caused by the burning of fossil fuels.
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.
But it would have been nice to hear the authors» thoughts on recent Japanese proposals to attempt to bioengineer even more productive living coral reefs and
plant them in the Pacific to
increase the power of the oceans to absorb
carbon.
By boosting
plant growth, compost helps to
increase soil
carbon storage.
This material has been tested as a fertilizer and has proven to stimulate the growth of several
plant species, both forestry and herbaceous,
increasing up to the 10 % its total content of nitrogen and
carbon as well as an
increase of its roots.
Reduced nitrogen content in atmospheres with raised
carbon dioxide has previously been attributed to a kind of dilutive effect, in which nitrogen absorption fails to keep pace with the
increase in
plants» photosynthesis and growth.
Perennial Grass According to an ongoing study in Australia,
planting ranch lands with grasses that remain alive year - round also
increases the amount of
carbon trapped in the land.
«
Increased carbon dioxide levels in air restrict
plants» ability to absorb nutrients.»
Similarly,
carbon and resulting sugars channeled to stems and leaves
increases their mass and creates more
plant biomass, a bioenergy feedstock.
«This study addresses this knowledge gap by showing that warming
increased plant biomass, but also redistributes
carbon into the soil resulting in no change in soil [
carbon] stocks.»
Hawkesford and his colleagues have added extra copies of an enzyme called SBPase, to
increase the supply of a five -
carbon molecule that often runs short in
plants such as wheat.
This redistribution of soil
carbon storage raises questions of whether the balance provided by larger
plants will stand in the long term or whether the more active microbes detected in the deeper soils will eventually offset the
increased carbon in those deeper soils.
Scientists measured how much
carbon dioxide the artificially warmed
plants respired — released into the air via their leaves — and learned that over time, the trees acclimated to warmer temperatures and
increased their
carbon emissions less than expected.
«The question with Arctic warming is whether the
increase in
plant growth is going to outpace the release of
carbon dioxide because of
increasing decomposition,» Sistla said.
$ 8 billion) over first ten years for deficit reductionObeys PAYGO; Starting in 2026, 25 % of auction revenues for deficit reductionFuels and TransportationIncrease biofuels to 60 million gallons by 2030, low -
carbon fuel standard of 10 % by 2010, 1 million plug» in hybrid cars by 2025, raise fuel economy standards, smart growth funding, end oil subsidies, promote natural gas drilling, enhanced oil recoverySmart growth funding, plug - in hybrids, raise fuel economy standards $ 7 billion a year for smart growth funding, plug - in hybrids, natural gas vehicles, raise fuel economy standards; offshore drilling with revenue sharing and oil spill veto, natural gas fracking disclosureCost ContainmentInternational offsetsOffset pool, banking and borrowing flexibility, soft price collar using permit reserve auction at $ 28 per ton going to 60 % above three - year - average market price» Hard» price collar between $ 12 and $ 25 per ton, floor
increases at 3 % + CPI, ceiling at 5 % + CPI, plus permit reserve auction, offsets like W - MClean Air Act And StatesNot discussedOnly polluters above 25,000 tons of
carbon dioxide equivalent a year, regional cap and trade suspended until 2017, EPA to set stationary source performance standards in 2016, some Clean Air Act provisions excludedOnly polluters above 25,000 tons of
carbon dioxide equivalent a year, regional cap and trade pre-empted, establishes coal - fired
plant performance standards, some Clean Air Act provisions excludedInternational CompetitivenessTax incentives for domestic auto industryFree allowances for trade - exposed industries, 2020
carbon tariff on importsCarbon tariff on importsReferences: Barack Obama, 2007; Barack Obama, 8/3/08; Pew Center, 6/26/09; leaked drafts of American Power Act, 5/11/10.
For example, he said, most participants recognized that
carbon dioxide
increases global temperatures, yet mistakenly indicated that rising levels of atmospheric CO2 are expected to «reduce photosynthesis in
plants.»
This is due in part to the fact that other conditions (e.g. availability of nutrients such as Nitrogen and Phosphorus) appear to quickly become limiting, even when
carbon availability is removed as a constraint on
plant growth when ambient CO2 concentrations are sufficiently
increased.