Plants are adapting to increasing atmospheric carbon dioxide according to a new study from the University of Southampton
The research, published in the journalÂ Global Change Biology, provides insight into the long-term impacts of rising CO2Â and the implications for global food security and nature conservation.
Lead authorÂ Professor Gail Taylor, from Biological Sciences at the University of Southampton, said: âAtmospheric CO2Â is rising â emissions grew faster in the 2000s than the 1990s and the concentration of CO2 reached 400 ppm for the first time in recorded history in 2013.
Two new studies by researchers at the University of California, Irvine and NASA have found the fastest ongoing rates of glacier retreat ever observed in West Antarctica and offer an unprecedented look at ice melting on the floating undersides of glaciers. The results highlight how the interaction between ocean conditions and the bedrock beneath a glacier can influence the frozen mass, helping scientists better predict future Antarctica ice loss and global sea level rise.
The studies examined three neighboring glaciers that are melting and retreating at different rates. The Smith, Pope and Kohler glaciers flow into the Dotson and Crosson ice shelves in the Amundsen Sea embayment in West Antarctica, the part of the continent with the largest decline in ice.
The stomachs of cattle, fermentation in rice fields, fracking for natural gas, coal mines, festering bogs, burning forests â they all produce methane, the second most important greenhouse gas, after carbon dioxide. But how much? And how can we best cut these emissions? And is fracking frying the planet, or are bovine emissions more to blame?Â
Globally averaged concentration of carbon dioxide in the atmosphere reached the symbolic and significant milestone of 400 parts per million for the first time in 2015 and surged again to new records in 2016 on the back of the very powerful El NiÃ±o event, according toÂ theÂ World Meteorological Organization's annual Greenhouse Gas Bulletin.
Understanding how tiny particles emitted by cars and factories affect Earth's climate requires accurate climate modeling and the ability to quantify the effects of these pollutant particles vs. particles naturally present in the atmosphere. One large uncertainty is what Earth was likeÂ beforeÂ these industrial-era emissions began. In a paper just published inÂ Nature,Â scientists collaborating on theÂ GoAmazonÂ study describe how they tracked particles in the largely pristine atmosphere over the Amazon rainforest, which has given them a way to effectively turn back the clock a few hundred years. Â
Climate change is disrupting the sensory systems of fish and can even make them swim towards predators, instead of away from them, a paper by marine biologists at the University of Exeter says.
Research into the impact of rising CO2 has shown it can disrupt the senses of fish including their smell, hearing and vision.
Research by the University of Southampton shows that a change in the patterns of tropical storms is threatening the future of the Mekong River delta in Vietnam, indicating a similar risk to other deltas around the world.
The study, funded by the UK Natural Environment Research Council (NERC) and undertaken in collaboration with the universities of Exeter (UK), Hull (UK), Illinois (USA) and Aalto University (Finland), found that changes in the behaviour of cyclones mean less sediment is running into rivers upstream of the Mekong delta, starving it of material vital for guarding against flooding. The findings are published in the journal Nature.
A new multiyear study from scientists at the Woods Hole Oceanographic Institution (WHOI) has shown for the first time how changes in ocean temperature affect a key species of phytoplankton. The study, published in the October 21 issue of the journalÂ Science, tracked levels ofÂ Synechococcusâa tiny bacterium common in marine ecosystemsânear the coast of Massachusetts over a 13-year period. As ocean temperatures increased during that time, annual blooms ofÂ SynechococcusÂ occurred up to four weeks earlier than usual because cells divided faster in warmer conditions, the study found.
Hydrogen is often described as the fuel of the future, particularly when applied to hydrogen-powered fuel cell vehicles. One of the main obstacles facing this technology â a potential solution to future sustainable transport â has been the lack of a lightweight, safe on-board hydrogen storage material.
August's warmth spread intoÂ September, contributing to theÂ warmest year to date for the globe, but not enough toÂ continue the recentÂ 16-month streak of record warmth.Â Even so, September 2016 ranked asÂ the second warmest SeptemberÂ on record. Â
Agriculture is responsible for 90% of all ammonia pollution in Europe, a considerable part of which comes from cattle manure management: a new study shows what steps to take to reduce this pollution.
Improved barn design, cleaning processes, and manure treatment could reduce ammonia emissions from commercial dairy cattle barns by 17 to 50%, according toÂ a new study published in the journalÂ Science of the Total Environment.Â The study provides a list of techniques and technologies that could provide the greatest reductions in ammonia emissions.
There is a need to reforest Africaâs highest mountain to help protect vital water supplies that are under threat across large parts of East Africa, a UN Environment report urged today.
The loss of Mount Kilimanjaroâs forests could trigger water crisis as rivers begin to dry up, notes the report, entitledÂ Sustainable Mountain Development in East Africa in a Changing Climate, which was launched at the World Mountain Forum in Uganda today.
MIT, Boston Medical Center, and Post Office Square Redevelopment Corporation have formed an alliance to buy electricity from a large new solar power installation, adding carbon-free energy to the grid and demonstrating a partnership model for other organizations in climate-change mitigation efforts.
The agreement will enable the construction of a roughly 650-acre, 60-megawatt solar farm on farmland in North Carolina. Called Summit Farms, the facility, the largest renewable-energy project ever built in the U.S. through an alliance of diverse buyers, is expected to be completed and to begin delivering power into the grid by the end of this year.
Tiny robots have been helping researchers study how cliÂmate change affects bioÂdiÂverÂsity. DevelÂoped by NorthÂeastern UniÂverÂsity sciÂenÂtistÂ Brian HelÂmuth, the âroboÂmusÂselsâ have the shape, size, and color of actual musÂsels, with miniaÂture built-inÂ senÂsors that track temÂperÂaÂtures inside the musselÂ beds.
Geomorphologists who study Earthâs surface features and the processes that formed them have long been interested in how floods, in particular catastrophic outbursts that occur when a glacial lake ice dam bursts, for example, can change a planetâs surface, not only on Earth but on Mars.Â Now geoscience researchers Isaac Larsen at the University of Massachusetts Amherst and Michael Lamb at the California Institute of Technology have proposed and tested a new model of canyon-forming floods which suggests that deep canyons can be formed in bedrock by significantly less water than previously thought.
In pictures, the Arctic appears pristine and timeless with its barren lands and icy landscape. In reality, the area is rapidly changing.Â Scientists are working to understand the chemistry behind these changes to better predict what could happen to the region in the future. One team reports in ACSâÂ Journal of Physical Chemistry AÂ that sea salt could play a larger role in the formation of local atmospheric pollutants than previously thought.
Danish scientists are developing a grass that will cut down how often cows burp and pass gas â reducing the amount of methane, a potent greenhouse gas, they release into the atmosphere.
A newÂ studyÂ chronicles how central Asia dried out over the last 23 million years into one of the most arid regions on the planet. The findings illustrate the dramatic climatic shifts wrought by the ponderous rise of new mountain ranges over geologic time.
Researchers have long cited the uplift of the Tibetan Plateau and the Himalayan Mountains around 50 million years ago for blocking rain cloudsâ entry into central Asia from the south, killing off much of the regionâs plant life.
A new study from NOAA, the National Oceanic Atmospheric Administration, puts a new twist on a tricky question about the impact of increased oil and gas production on greenhouse gas emissions. Scientists have detected increased rates of methane emissions globally since 2007. That uptick corresponds to the rapid boom in U.S. shale gas and shale oil production, and some hypothesized that the two could be connected. But it turns out that the correlation may not necessarily be a cause.
A new study says that human-induced climate change has doubled the area affected by forest fires in the U.S. West over the last 30 years. According to the study, since 1984 heightened temperatures and resulting aridity have caused fires to spread across an additional 16,000 square miles than they otherwise would haveâan area larger than the states of Massachusetts and Connecticut combined. The authors warn that further warming will increase fire exponentially in coming decades.Â
A visible image showing powerful Hurricane Matthew and Nicole on Oct. 6 at 1 p.m. EDT was captured by NOAA's GOES-East satellite. The image shows large Hurricane Matthew's clouds stretching from eastern Cuba and Hispaniola, over the Bahamas and extending to Florida. Matthew is west of the much smaller Tropical Storm Nicole. The image was created at the NASA/NOAA GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Maryland.Â
Nearly two years ago, Sandia National Laboratories researchers Joe Pratt and Lennie Klebanoff set out to answer one not-so-simple question: Is it feasible to build and operate a high-speed passenger ferry solely powered by hydrogen fuel cells? The answer is yes.
The details behind that answer are in a recent report, âFeasibility of the SF-BREEZE: a Zero Emission, Hydrogen Fuel Cell High Speed Passenger Ferry.â SF-BREEZE stands for San Francisco Bay Renewable Energy Electric Vessel with Zero Emissions.
New research from North Carolina State University finds that urban warming reduces growth and photosynthesis in city trees. The researchers found that insect pests are part of the problem, but that heat itself plays a more significant role.
Climate change is a serious threat to humans, animals, and the earthâs ecosystems. Nevertheless, effective climate action has been delayed, partly because some still deny that there is a problem. In a new thesis in psychology, Kirsti JylhÃ¤ at Uppsala University has studied the psychology behind climate change denial. The results show that individuals who accept hierarchical power structures tend to a larger extent deny the problem.
In the scientific community there is a strong consensus that humans have significantly affected the climate and that we are facing serious challenges. But there is a lot of misinformation about climate change in circulation, which to a large part is created and distributed by organised campaigns with the aim of postponing measures that could combat climate change. And there are people who are more prone than others to trust this misinformation.
Previous research has consistently shown that it is more common among politically conservative individuals to deny climate change. In her thesis, Kirsti JylhÃ¤ has investigated this further and in more detail. Her studies included ideological and personality variables which correlate with political ideology, and tested if those variables also correlate with climate change denial.
Doubling of the carbon dioxide concentration will cause global plant photosynthesis to increase by about one third, according to a paper published in the journalÂ Nature
The study has relevance for the health of the biosphere because photosynthesis provides the primary food-source for animal life, but it also has great relevance for future climate change.