National or other emissions inventories of greenhouse gases that are used to develop strategies and track progress in terms of emissions reductions for climate mitigation contain a certain amount of uncertainty, which inevitably has an impact on the decisions they inform. IIASA researchers contributed to several studies in a recently published volume that aims to enhance understanding of uncertainty in emissions inventories.
Scientists have developed a large-scale economical method to extract hydrogen (H2) from oil sands (natural bitumen) and oil fields. This can be used to power hydrogen-powered vehicles, as well as to generate electricity; hydrogen is regarded as an efficient transport fuel, similar to petrol and diesel, but with no pollution problems. The process can extract hydrogen from existing oil sands reservoirs. Interestingly, this process can be applied to mainstream oil fields, causing them to produce hydrogen instead of oil.
Since the first Homo sapiens emerged in Africa roughly 300,000 years ago, grasslands have sustained humanity and thousands of other species. But today, those grasslands are shifting beneath our feet. Global change -- which includes climate change, pollution and other widespread environmental alterations -- is transforming the plant species growing in them, and not always in the ways scientists expected, a new study published Monday revealed.
Detrimental economic effects of global warming are likely to go beyond those being discussed in policy circles -- particularly for wealthier nations, say researchers. Study suggests that 7% of global GDP will disappear by 2100 as a result of business-as-usual carbon emissions -- including over 10% of incomes in both Canada and the United States.
Bacteria found in muddy marshes, estuaries and coastal sediment synthesise one of the Earth's most abundant climate cooling gases -- according to new research from the University of East Anglia (UEA). Dimethylsulfoniopropionate (DMSP) is an important nutrient in marine environments with billions of tonnes produced annually by marine phytoplankton (microscopic plant-like cells), seaweed, corals and bacteria.
In a perspective published in Joule on August 14, a group of researchers led by Stanford University propose a new academic discipline, 'macro-energy systems,' as the science of the energy transition.
A new study from the University of Helsinki using miniaturized satellite-based tags revealed that during drier periods desert bats must fly further and longer to fulfil their nightly needs. According to researchers this signals their struggle in facing dry periods.
When Earth's species were rapidly diversifying nearly 500 million years ago, that evolution was driven by complex factors including global cooling, more oxygen in the atmosphere, and more nutrients in the oceans. But it took a combination of many global environmental and tectonic changes occurring simultaneously and combining like building blocks to produce rapid diversification into new species, according to a new study by Dr. Alycia Stigall, Professor of Geological Sciences at Ohio University.
Energy use in buildings -- from heating and cooling your home to keeping the lights on in the office -- is responsible for over one-third of all carbon dioxide (CO2) emissions in the United States. Slashing building CO2 emissions 80% by 2050 would therefore contribute significantly to combatting climate change. A new model developed by researchers at two US national laboratories appears Aug. 15 in the journal Joule.
For their 19-year study, UC Davis scientists dug roughly 6 feet down to compare soil carbon changes in different cropping systems. They found that compost is a key to storing carbon, a strategy for offsetting CO2 emissions.