Articles tagged with Carbon Emissions
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Dr. David Keith proposes a potential solution for reducing CO2 emissions by storing it in giant inflatable bags on the seabed. The concept is technically feasible with current-day technology and may offer a viable complement to other storage methods.
The Nitrous Oxide Focus Group brings together influential organizations to address the potent greenhouse gas's significant impact on agriculture and industry. Key research findings suggest that nitrous oxide is 300 times more potent than carbon dioxide, making its longevity in the atmosphere a potentially more damaging legacy.
Experts emphasize the need for global solutions to manage carbon emissions, considering the global energy system's shift and technological advancements. Accurate modeling of Earth's systems, capturing and storing CO2 are critical challenges.
Scientists studying the Paleocene-Eocene Thermal Maximum (PETM) find analogies for global changes from continued carbon dioxide emissions. The ocean can absorb massive amounts of carbon, but acidification threatens corals and marine organisms building calcium carbonate shells.
A new study suggests that reducing carbon dioxide emissions to near-zero levels is necessary to stabilize the planet's climate. The research found that even with zero emissions, global temperatures would remain high for at least 500 years due to heat held in oceans, emphasizing the urgency of drastic action.
Researchers at Georgia Institute of Technology have developed a strategy to capture, store and recycle carbon from vehicles, enabling the creation of zero emission cars. The technology involves an onboard fuel processor that separates hydrogen from carbon, allowing for the production of clean energy.
A new study by the University of Minnesota and The Nature Conservancy found that turning native ecosystems into biofuel farms releases 17 to 420 times more carbon than the annual savings from replacing fossil fuels. This 'carbon debt' must be paid before biofuels can mitigate global warming.
A new study by Stanford University researcher Mark Jacobson links increased levels of carbon dioxide in the atmosphere to increased human mortality, with up to 20,000 air-pollution-related deaths worldwide per degree Celsius. The study highlights California's particularly dire situation due to its severe air pollution, which is expecte...
A major new study published in Science warns that global warming and acidification are triggering widespread coral disease and stifling coral growth. The researchers argue that drastic action is needed from world leaders to protect coral reefs, which support 100 million people and generate billions of dollars in tourism.
Scientists warn that coral reefs will struggle to survive in increasingly acidic ocean waters due to rising carbon emissions, threatening marine biodiversity and coastal economies. The Great Barrier Reef is among the first victims of this acidification, which could lead to its collapse by mid-century.
Coral reefs, crucial for millions of livelihoods worldwide, are at risk due to rapid climate change and ocean acidification. The International Coral Reef Targeted Research Program warns that most coral reefs will not survive the forecasted increases in global temperatures and CO2 emissions unless drastic action is taken.
The new online carbon calculator, developed by Conservation International, allows users to easily calculate their carbon footprint and learn ways to reduce emissions. The calculator also enables users to offset their emissions by supporting forest-carbon projects that conserve critical habitat for plant and animal species.
More than 200 leading climate scientists have warned the need for immediate action to reduce greenhouse gas emissions. The Bali Climate Declaration calls on governments to limit global warming to below 2 degrees C by stabilising CO2 levels at well below 450ppm CO2e.
A new study by the University of Helsinki finds that EU forests are expanding and absorbing large amounts of carbon, with an average annual absorption of 126 teragrams between 1990 and 2005. The expansion of forests in certain countries, such as Finland and Lithuania, has even more than offset national emissions.
A new study led by UK scientists aims to reduce China's CO2 emissions from coal use, which are set to double by 2030. The 'Near Zero Emissions Coal' project uses carbon capture and storage technology to achieve up to a 90% reduction in emissions.
Researchers characterize conductive and field emission properties of single and multi-walled carbon nanotubes, finding structure-dependent conductivity and emission. The findings bring next-gen flat panel TVs and monitors closer to reality.
A new study by MIT economists suggests that US greenhouse gas emissions could accelerate in the next 50 years, with technological change possibly contributing to increased emissions. The researchers found that energy use and CO2 emissions may grow at rates higher than historical averages, despite increasing energy prices.
A university-industry team led by Virginia Tech is developing a low-cost dry beneficiation technology for India to increase energy production and reduce carbon dioxide emissions. The project aims to test advanced technologies for cleaning coal, increasing thermal efficiencies and reducing CO2 emissions by up to 45%.
The CARMA database provides detailed information on power plant emissions, ranking companies by their carbon footprint. The US is the largest emitter, with Southern Co. leading the way, and Australians are among the highest per capita emitters.
FIJI Water aims to reduce its carbon footprint by 25% and achieve a net positive impact on the environment through sustainable growth initiatives. The company has partnered with Conservation International to develop an ambitious multi-benefit carbon offset plan.
Researchers invent technology to accelerate Earth's own solution to greenhouse gas accumulation by removing CO2 from the atmosphere and transferring it to the ocean. The engineered weathering process can safely and permanently remove excess CO2 in a matter of decades, mitigating global warming.
Severe US wildfires can release as much CO2 as the entire transportation sector of a state, posing challenges for emissions tracking. The study found that fires in Western and Southeastern states account for a disproportionate share of carbon emissions.
New research estimates that US fires release around 290 million metric tons of carbon dioxide annually, a significant contributor to greenhouse gas emissions. The study found that large fires can release enormous pulses of CO2 rapidly into the atmosphere, complicating efforts to understand and combat global warming.
A recent MIT study warns that increasing levels of human-generated ozone will damage global vegetation, particularly crops, resulting in significant economic costs. By 2100, crop production is projected to decline by 10-12 percent, with the most affected regions being northern temperate areas.
Agricultural soil erosion removes more carbon from the atmosphere than it emits, creating carbon sinks equivalent to 1.5% of annual fossil fuel emissions. The study challenges previous assessments that erosion contributes significantly to global warming.
Researchers found that erosion acts as a sink for atmospheric carbon, capturing about 1.5% of annual fossil-fuel emissions worldwide. This challenges previous estimates suggesting soil erosion could be a significant source or sink of carbon.
A recent study confirms that the proportion of carbon dioxide emissions absorbed by land and oceans is declining, leading to a faster increase in atmospheric CO2 levels. This trend has major implications for climate modeling and highlights the need to reduce global emissions to mitigate climate change.
A new study reveals that human activities are releasing carbon dioxide at a faster rate than ever, while natural carbon sinks are weakening. The global economy's carbon intensity has increased since 2000, posing a challenge in mitigating climate change.
A team of scientists warns that CO2 emissions could alter ocean chemistry, violating EPA water quality criteria by mid-century. The study predicts that atmospheric CO2 concentrations will exceed 500 ppm by century's end, posing significant risks to marine biota and food webs.
A Princeton professor is advancing the development of practical, innovative energy sources for jet fuel. His research efforts focus on creating computational and kinetic models that accurately simulate jet fuel combustion and developing fuels with near-zero net greenhouse gas emissions.
A radical vision suggests London could reduce emissions by 72% if all cars are banned and active transport like walking and cycling is prioritized. The proposal offers a solution to achieve the UK's 2030 carbon reduction goal, with benefits for public health and safety.
Researchers have developed a laser-based device to measure carbon dioxide, carbon monoxide, and methane emissions directly from vehicle exhausts. This technology has the potential to monitor emissions in real-time, enabling drivers to adjust their driving style and reduce pollution.
Engineers have developed ceramic tubes that can filter oxygen out of the air, enabling almost pure carbon dioxide production for reprocessing into useful chemicals. This technology has potential to reduce greenhouse gas emissions from power stations by up to zero.
A new standard aims to reduce carbon emissions from fuels by 10% by 2020, stimulating improvements in transportation-fuel technologies. The standard covers all gasoline and diesel fuel providers, requiring them to track life-cycle global warming intensity and reduce it over time.
Scientists found that isoprene emission from plants protects against heat stress and improves photosynthesis efficiency. The study used genetic engineering techniques to reduce isoprene emission in transgenic Grey poplar trees, which showed increased tolerance to heat shock.
A recent study suggests that northern forests absorb less carbon than previously thought, with intact tropical forests taking up a larger proportion of the atmosphere's carbon dioxide, partially offsetting industrial emissions and deforestation.
A long-term study validates Georgia's vehicle emissions inspection program, reducing emissions by half since the late 1970s. Newer fuels and cleaner vehicle models have also contributed to the decline in emissions, making the inspections program a cost-effective solution.
Researchers argue that increased US trade with countries like China has significantly increased carbon emissions, with CO2 emissions from imports rising from 12% in 1997 to 22% in 2004. The study concludes that this trend is likely to continue without major efforts towards efficiency gains and cleaner development.
Researchers at Stanford University are investigating carbon capture and storage as a solution to combat global warming. The technology can trap over 90% of an individual plant's carbon emissions, making heavy carbon spewers such as coal power plants relatively clean.
Research at University of California - Irvine reveals that dirty snow can explain up to 19% of the Arctic warming attributed to greenhouse gases. Soot-infused snow absorbs sunlight and causes heating.
The partnership aims to standardize carbon credit trading in the US, utilizing Argonne's GREET model. This collaboration may lead to increased credibility and growth in the green-energy market.
Climate models predict the West Antarctic ice sheet and Arctic sea ice will collapse due to continued global warming. The researchers estimate that additional global warming of 1ºC above 2000 levels is likely to be 'dangerous'.
Trials at NSW DPI's Wollongbar Agricultural Institute found agrichar, a black carbon byproduct of pyrolysis, triples wheat yields and doubles soybean production when applied at 10 tonnes per hectare. The technology also reduces greenhouse gas emissions by up to 99% compared to traditional farming methods.
The EU ETS has achieved its goal of limiting CO2 emissions and placed a price on carbon, with the value of traded volume estimated at €14.7 billion. A global framework for managing climate policy is required to address global greenhouse gas emissions.
Global carbon dioxide emissions have accelerated at a three percent increase per year in the 2000s, with nearly eight billion tonnes emitted globally in 2005 compared to six billion tonnes in 1995. The growth rate is attributed to increased fossil fuel usage and less efficient burning of these fuels.
The study found that CO2 emissions increased at a rate three times faster than in the 1990s, primarily driven by growing energy intensity and population. This trend is concerning, as it suggests a reversal of long-term progress towards greater energy efficiency and reduced carbon intensities.
A four-year study reveals that climate change has weakened one of Earth's natural carbon sinks, the Southern Ocean, leading to a release of stored CO2 and preventing further absorption. This 'feedback' will continue and intensify during this century, making stabilisation of atmospheric CO2 more difficult.
New research by CSIRO Australia confirms deforestation is a critical climate change role, releasing 1.5 billion tonnes of carbon annually. Preserving tropical forests as carbon sinks can help stabilize atmospheric greenhouse gas concentrations.
A two-year RED initiative aims to reduce deforestation in tropical developing nations, saving half a billion metric tons of carbon every year. Computer models predict that preserved forests will continue to act as a carbon sink if emissions are kept under control.
A recent study in Nature suggested plants emit methane, but a new study in New Phytologist found methane emissions from plants are negligible and do not contribute to global climate change. The researchers used a novel experiment with heavy carbon isotopes to detect any methane emission, which was undetectable.
A new study found that biodiesel from rapeseed could emit nearly the same amount of CO2 equivalents as conventional diesel. However, switching to tree farming for rapeseed production could significantly reduce emissions compared to petroleum diesel.
The Netherlands Organization for Scientific Research found that CO2 capture and storage can avoid up to 80-110 million tonnes of CO2 emissions annually. The technology has significant potential in various sectors, including energy, industry, and transport.
The new CarbonTracker tool will distinguish between natural and human-produced carbon cycle changes, providing verification for climate models. It will also enable policymakers to compare emissions from urban centers and businesses.
Ocean acidity is rising due to increasing carbon dioxide levels, posing a threat to marine life such as corals and shellfish. The study suggests that future changes in ocean acidification are largely independent of climate change.
A University of Texas at Austin researcher has developed a more economical technology to capture carbon dioxide from coal-fueled power plants, which could lead to a 90% reduction in emissions. The project is being supported by a $1.8M donation from TXU Power.
A new technology using nano-porous fibres has been awarded the Royal Society's Brian Mercer Award for Innovation, with early trials showing significant energy savings and potential to reduce environmental impact. The technology could be used in various industries, including beverage production and petrol filling stations.
Researchers will develop software to predict unintended consequences of greenhouse gas reduction policies on the automotive market, life cycle environmental impact, and material demand. The goal is to ensure that policies effectively reduce emissions while minimizing undesirable outcomes.
A Carnegie Mellon paper outlines incentives for controlling carbon emissions, warning of the consequences of delaying effective electric sector policy. Implementing an 80% reduction in carbon dioxide from power plants is likely to be cost-effective and reduce environmental impact.
A new study by Dr. Kevin Robert Gurney found that boreal North America removes carbon from the atmosphere during warm Spring years, while Boreal Asia emits more carbon with above normal Fall temperatures. These findings have implications for climate change projections and suggest a regional difference in how ecosystems respond to warming.
Researchers develop mechanism for capturing carbon dioxide from power plants and injecting it into the ground, where it will be trapped naturally. The injected gas forms a plume that rises through permeable rock, eventually breaking into small bubbles or blobs that remain safely stored.