Articles tagged with Carbon Emissions
A project has successfully demonstrated that underground carbon dioxide storage can economically reduce emissions, allowing the oil industry to pump carbon dioxide into its wells and produce extra oil. Over 1.9 billion cubic meters of CO2 have been injected into a Saskatchewan oil reservoir since 2000.
Researchers found that wood chip bedding had less nitrogen loss during composting, reducing volatile losses and improving air quality. Greenhouse gas emissions were similar to those of traditional straw bedding, making it a viable option for beef cattle.
Restoring carbon in degraded agricultural soils can significantly improve crop yields and global food security, while reducing greenhouse gas emissions. However, soil has a finite capacity for holding carbon, and widespread adoption of recommended management practices may reach its limits within 50 years.
Researchers pinpoint CO2 sources, geological and terrestrial sinks, and transport requirements in Virginia. The project aims to reduce greenhouse gases and mitigate global warming by developing technologies for removing carbon from the atmosphere.
Researchers combine airborne data with ground-based measurements to better understand carbon exchanges in rolling hills and mountain ranges. The project aims to enhance carbon uptake and improve monitoring methods for high-emitting nations and industries.
Researchers found that loblolly pine forests grown in high CO2 conditions exhibit varying growth rates depending on soil moisture. Nitrogen deficiencies limit tree growth in dry years, while excess nitrogen makes a difference in wet years.
Scientists say that replacing gasoline-fueled vehicles with cleaner diesel technology could lead to a significant increase in surface ozone levels, particularly in the Southeast. The study found that pollutants such as nitrogen oxides and hydrocarbons also increased, highlighting the need for more effective pollution control measures.
Scientists disagree with Nir Shaviv and Jan Veizer's claim that cosmic rays influence global warming. The current warming is mainly caused by human emissions of carbon dioxide, according to 11 experts in the field.
Global per capita greenhouse gas emissions need to be reduced to a small fraction of present levels within the next hundred years. A gradual transition to an emission-free economy is possible at an acceptable price, with significant reductions in emissions necessary beyond the Kyoto horizon.
A team of top scientists, including Thomas Karl and Kevin Trenberth, conclude that human activities are significantly impacting the global climate, with industrial emissions being the dominant factor. The study estimates a 1.7°C to 4.9°C temperature rise by 2100, with widespread impacts on society and the environment.
A study by Thomas Karl and Kevin Trenberth concludes that human activities are significantly impacting the global climate, with a 90% probability of temperature rises between 1.7 to 4.9 degrees Celsius by 2100. Rising carbon dioxide levels and industrial emissions are driving these changes.
Researchers propose an international treaty to control air pollutants like ozone and aerosols, which can cause respiratory diseases. The treaty aims to unite countries in addressing short-term health risks while also reducing carbon dioxide emissions.
The MIT team has developed a promising catalytic converter that controls emissions and can withstand excess oxygen. By understanding the atomic-level reaction process of sulfur trioxide formation, they aim to improve fuel efficiency and reduce pollution.
A Pennsylvania inventory reveals that fossil fuels are the largest source of carbon dioxide, while motor vehicles contribute significantly to greenhouse gas emissions. The study also highlights the need for policy makers and others in the state to take action to reduce emissions.
Researchers have successfully created carbon nanotubes with ideal photon emission, a narrow and steady emission that can be used for quantum cryptography and single-molecule sensors. This breakthrough enables the development of practical applications in fields such as quantum optics and biology.
The US is responsible for 23% of global greenhouse-gas emissions. The editorial emphasizes the need for changes in law and tax incentives to persuade citizens to use fewer fossil fuels and adopt recycling initiatives.
Researchers suggest celestial processes dominate climate change, with cosmic rays influencing low-level cloud formation and blocking sun warming. Human-caused greenhouse gas emissions are secondary to natural forces.
A new study suggests that human activities are a leading cause of warming in the troposphere and cooling in the stratosphere. The research team found that ozone depletion combined with greenhouse gas emissions accounted for most of the recent rise in the tropopause height.
A new climate model, ALL, integrated multiple factors into a single experiment, recreating observed temperature records for the 20th century. The model predicts increased global warming of 5.5 degrees Celsius by the end of the 21st century when sulphate emissions reductions are considered.
Researchers found that even if climate sensitivity is low, massive transition to carbon-free energy technologies is needed during this century. The study suggests developing alternative energy sources now to achieve stabilization at a 2 degree Celsius warming.
Researchers challenge a recent study's estimate of greenhouse gas emissions from tropical deforestation, citing seven serious errors that lead to a major underestimate. The Achard study failed to account for drier forests, biomass, and the effects of methane and nitrous oxide.
A CU-Boulder study suggests that elevated CO2 concentrations in agriforests can reduce isoprene emissions, a key contributor to ground-based ozone pollution. This finding could have significant implications for mitigating regional ozone pollution and enhancing climate mitigation strategies.
Researchers at Stanford University conducted a three-year experiment, raising questions about the impact of elevated CO2 on plant growth. The study found that CO2 suppression was most pronounced when combined with other climate change factors like temperature, precipitation, and nitrogen deposition.
The study highlights the importance of developing revolutionary technologies for energy production, distribution, storage, and conversion to reduce carbon dioxide emissions. Researchers emphasize the need for a multifaceted approach to address the issue, as single solutions are unlikely to be effective.
A study suggests that diesel cars could warm the climate more over time than gasoline-powered vehicles, even with lower CO2 emissions. This is because soot from diesel engines has a shorter lifetime in the air and warms it more intensely.
The GISS 'SI2000' climate model demonstrates that global temperature change is mainly a response to human-made forcings, such as carbon dioxide and methane. The study projects possible futures under two contrasting scenarios, with minimal warming if air pollution decreases and CO2 emissions are stabilized.
Researchers used the GISS SI2000 climate model to simulate past and future global temperature changes, finding that human-made forcings are mainly responsible for recent warming. The study suggests that reducing air pollution and stabilizing carbon dioxide emissions could limit warming to 0.75°C over the next 50 years.
A new analysis suggests that reducing greenhouse gas emissions by 2010 could prevent or mitigate some severe climate change effects. However, saving coral reefs is unlikely, while ocean currents and ice-sheet melting are more plausible but uncertain outcomes.
UC Davis' entry, Yosemite, is a plug-in hybrid electric vehicle that doubles fuel economy and reduces tailpipe emissions below California's strictest SULEV standards. The FutureTruck project, a joint government-industry initiative, aims to raise the environmental performance of popular SUVs while keeping their amenities.
A study led by Duke University ecologist Robert Jackson found that soil nitrogen availability constrains the capacity of ecosystems to absorb increased atmospheric CO2. The research suggests that natural systems will no longer be able to take up excess carbon dioxide, emphasizing the need for stringent emissions controls.
Climate models predict significant temperature increases and sea level rise over the next century. The effects of carbon dioxide emissions from fossil fuels will last for at least 100 years, regardless of current reductions.
A new NASA-funded study shows that global warming in recent decades has been caused by carbon dioxide, with other greenhouse gases including methane, tropospheric ozone, and black carbon. The growth of emissions has slowed over the past 20 years, primarily due to the phase-out of ozone-depleting gases.
A new study by top carbon scientists reveals that terrestrial carbon sinks will not operate steadily into the future due to the temporary nature of key processes. The sinks, which currently absorb excess carbon dioxide, are expected to diminish with time as forests mature and other factors saturate.
A study by researchers at Monterey Bay Aquarium Research Institute exposes the potential biological impacts of deep-sea carbon sequestration on marine ecosystems. Decreased pH can lead to metabolic suppression, inhibiting growth and reproduction in sensitive organisms.
The report recommends four main areas of focus for the Carbon Trust: RD&D programme, skills development, international cooperation, and social and economic research. It also identifies promising low-carbon technologies, including renewable energy, energy efficiency, and hydrogen production.
Researchers successfully tested a corn-based activated carbon for removing mercury emissions from coal-fired power plants, achieving results comparable to commercial products. The technology demonstration marked the first time this approach was applied to high-sulfur Illinois coal flue gas.
A nationwide study by Ohio State University found that ozone concentrations in US cities are primarily influenced by external factors such as construction and road intersections. The study revealed a positive correlation between public transportation use and reduced ozone levels, as well as the importance of preserving green space in d...
A team of researchers, led by Keith Cooksey from Montana State University, is on a mission to find microorganisms that can naturally lower carbon dioxide emissions from coal-fired power plants. They plan to use the heat-loving microbes found in Yellowstone National Park's hot springs to scrub CO2 from industrial exhaust.
Recent study by Princeton University scientists reveals that reforestation of former farmland has played a crucial role in reducing atmospheric carbon dioxide. The finding highlights the importance of historical land-use changes in understanding carbon uptake in North American forests.
Researchers at Ohio University are developing an algae-based system to remove carbon dioxide from smokestacks, reducing greenhouse gas emissions. The system uses photosynthesis and could process up to 20% of a plant's CO2 emissions, producing 200,000 tons of algae per year.
A Stanford study supports a U.N. proposal to give rich nations an economic incentive to finance tropical forest conservation programs in poor countries. The Clean Development Mechanism (CDM) plan aims to help protect the planet from global warming by reducing greenhouse gas emissions.
Researchers are developing cost-effective methods to capture and store carbon dioxide, with potential to reduce global warming impact. The DOE-funded projects include membrane development, vortex tube separation, and algae-based carbon sequestration.
A new study reveals that North America does not absorb as much carbon dioxide as it emits, contradicting long-held assumptions. The research found that natural processes can only account for a small fraction of the released carbon dioxide, highlighting the complexity of climate change.
Researchers modeled US ecosystem carbon budget using state-of-the-art data and models, finding small uptake of carbon despite high emissions. The results suggest that ecosystems in the US store carbon, but not enough to balance fossil fuel use, making other regions important for climate change mitigation.
Depleted gas reservoirs can store enough carbon dioxide to limit emissions from fossil fuels for at least 20 years, according to USGS scientist Dr. Robert Burruss. However, capturing, compressing, transporting, and injecting such large amounts of CO2 requires an industry nearly twice the size of the current natural gas industry.
A new MIT study analyzes the economic and atmospheric impacts of the Kyoto Protocol, showing that controlling multiple gases can greatly reduce costs. The research indicates flaws in the protocol's 'yardstick' for comparing greenhouse gases, highlighting the need for an integrated systems approach to mitigate climate change.
Scientists will gather at the University of Michigan to discuss technical problems in measuring global carbon emissions, including identifying 'sinks' for locking up atmospheric carbon. The three-day symposium aims to advance our understanding and verification of carbon credits.
Researchers attribute decrease in atmospheric carbon monoxide levels to reductions in manmade emissions, consistent with trends reported by the EPA. The study found a significant decrease of around five parts per billion by volume in carbon monoxide concentration levels at Big Meadows in Shenandoah National Park, Virginia.
Researchers developed a novel afterburner technology that increases waste consumption in marine incinerators by a factor of 3.2 while reducing carbon monoxide emission by the same amount. The technology also eliminated visible smoke emission during operation.
CSIRO scientists have measured a minuscule decline in oxygen over the past 20 years, which has shed new light on the role of forests and oceans in absorbing carbon dioxide. The oxygen reduction, just 0.03%, is negligible for human breathing but highlights the importance of plant life in capturing half of the CO2 generated by fossil fuels.
Researchers at the University of Toronto found a strong correlation between high weekend ozone levels and one degree Celsius higher temperatures. This challenges the assumption that ozone has a minor impact on greenhouse warming compared to carbon dioxide.
A recent study found that Duke Forest plots experienced a 25% growth increase over two years under high carbon-dioxide conditions. This suggests that forests could serve as a significant carbon sink, potentially offsetting half of the world's expected carbon dioxide emissions from fossil fuel combustion.
New research suggests that increased Arctic temperatures due to global warming can lead to higher levels of carbon dioxide emissions, fueling global warming further. The study found that artificially elevating summer temperatures in arctic tundra resulted in significant losses of carbon dioxide from the soil.
A cost-effective method to eliminate methane emissions from coal mines has been developed by Natural Resources Canada. The system uses a secret catalyst to oxidize methane to water and CO2, generating heat and electricity in the process.
Researchers continuously monitored carbon dioxide flux at a 35-acre tree-kill area near Horseshoe Lake, discovering daily cycles that defy temperature explanation. The data suggests barometric pressure oscillations and Earth tides may influence the degassing rate, highlighting the complexity of volcanic gas emission.
A new study by the Swedish Environmental Protection Agency reveals that diesel cars emit significantly more nitrogen oxides, particulates, and carcinogenic substances than petrol-driven cars. This trend is counterproductive to achieving environmental goals for cleaner air and reduced acidification and eutrophication.
Scientists at Duke University and colleagues found that high CO2 levels can increase tree growth rates, but the effect is likely temporary. The experiment, which mimics future CO2 levels, shows a 12% increase in forest growth, but growth rates are expected to decline over time as the forest adjusts.
A recent USGS study found that a subalpine wetland in Colorado's Rocky Mountain National Park was a net source of carbon to the atmosphere during a two-year period, despite being a net carbon sink for thousands of years. The study suggests that climate change may be affecting the carbon balance of these wetlands.
A conference of 800 environmental scientists explores whether terrestrial ecosystems can slow down climate change by absorbing CO2. Recent technological developments, such as Free Air CO2 Enrichment technology, improve our ability to study carbon storage at the ecosystem level.
Researchers at Penn State found that northeastern Yellowstone mudpots emit significantly higher levels of carbon dioxide, up to 32,000 grams per square meter per day. This discovery contradicts previous assumptions that active geysers were the primary source of CO2 emissions.