The Paris AgreementÂ was hailed as aÂ turning point for world governments tackling climate change, and it has now comeÂ into effect. What does this mean for the world â and where do we go from here?
On Friday, November 4, the Paris Agreement went intoÂ effect, meaning thatÂ the agreementÂ made last year by nearlyÂ 200 international delegates must now be honored.Â To recognizeÂ the consensusÂ coming into force, the United Nations stated thatÂ it is a moment to celebrateÂ â andÂ to take concerted action.
âWe remain in a race against time,â UN Secretary General Ban Ki-moonÂ emphasized.Â âNow is the time to strengthen global resolve, do what science demands and seize the opportunity to build a safer, more sustainable world for all.â
With rapid industrialization and urbanization over the past decades, China has experienced widespread air pollution induced by fine particulate matter with a diameter of 2.5 Âµm or less (PM2.5). To protect human health and meet the newly implemented annual PM2.5Â target (less than 35 Âµg m-3), great efforts are needed to reduce emissions effectively. It is, therefore, essential to understand how future PM2.5 concentrationsÂ are affected by changes in anthropogenic emissions.Â
Researchers from North Carolina State University have developed a new way to determine the rate at which nitrate pollution will make its way from groundwater into streams. The work has implications for predicting long-term pollution in groundwater-fed streams.
Nitrate pollution, primarily from fertilizer runoff, is one of the major freshwater contaminants in the United States. Additionally, the pollution persists in aquifers â and thus in groundwater â which feed into streams over a period of years or decades.
Stanford geophysicists have compiled the most detailed maps yet of the geologic forces controlling the locations, types and magnitudes of earthquakes in Texas and Oklahoma.
These new âstress maps,â published in the journalsÂ Geophysical Research LettersÂ andÂ Bulletin of the Seismological Society of America, provide insight into the nature of the faults associated with recent temblors, many of which appear to have been triggered by the injection of wastewater deep underground.
âThese maps help explain why injection-induced earthquakes have occurred in some areas, and provide a basis for making quantitative predictions about the potential for seismic activity resulting from fluid injection,â said study co-authorÂ Mark Zoback, the Benjamin M. Page Professor of Geophysics in Stanfordâs School of Earth, Energy & Environmental Sciences.
In a new study, Harvard University researchers find over 90 percent of potential new Canadian hydroelectric projects are likely to increase concentrations of the neurotoxin methylmercury in food webs near indigenous communities.Â
The research forecasts potential human health impacts of hydroelectric projects and identifies areas where mitigation efforts, such as removing the top layer of soil before flooding, would be most helpful. The works uses factors such as soil carbon and reservoir design to forecast methylmercury increases for 22 hydroelectric reservoirs under consideration or construction in Canada.
Indian officials declared an emergency in New Delhi over the weekend as the capital city entered its second week with air pollution levels as high as 30 times above World Health Organization guidelines, severalÂ news outlets reported.
Construction sites have been closed, operations at a coal-fired power station halted, diesel generators stopped, and officials are preparing to reinstate traffic restrictions, all to reduce smog levels across the city, which have reached their highest levels in 20 years. Officials say field burning on nearby farmland and fireworks from the recent Diwali festival helped worsen the smog conditions.Â
How do you handleÂ nuclear wasteÂ that will be radioactive for millions of years, keeping it from harming people and the environment?
It isnât easy, but Rutgers researcherÂ Ashutosh GoelÂ has discovered ways to immobilize such waste â the offshoot of decades of nuclear weapons production â in glass and ceramics.
Goel, an assistant professor in theÂ Department of Materials Science and Engineering, is the primary inventor of a new method to immobilize radioactive iodine in ceramics at room temperature. Heâs also the principal investigator (PI) or co-PI for six glass-related research projects totaling $6.34 million in federal and private funding, with $3.335 million going to Rutgers.
An increased concentration of air pollution within metropolitan areas is associated with progression in coronary calcification and with acceleration of atherosclerosis, according to a studyÂ publishedÂ inÂ The Lancet.
In the prospective, 10-year cohort study, Northwestern Medicine scientists and collaborators at other institutions repeatedly measured coronary artery calcium by CT scan in 6,795 participants aged 45 to 84 years, who were enrolled in the Multi-Ethnic Study of Atherosclerosis and Air Pollution (MESA Air) in six metropolitan areas in the U.S.
Particularly under threat are honey bees, which are as vital to our food systems as the crops they pollinate, and which are prone to a range of emergent diseases including Moku and Deformed wing virus (DWV).
The Moku virus was identified through a collaboration of institutes with complementary expertise.
PurnimaÂ PachoriÂ of theÂ Platforms & Pipelines GroupÂ at the Earlham Institute (EI) carried out the bioinformatics work of separating out host and viral genetic material, which allowed for the analysis and identification of the novel Moku virus led by Gideon Mordecai (based at the time at theÂ Marine Biological Association (MBA), Plymouth).
The bulk of methane emissions in the United States can be traced to a small number of âsuper emittingâ natural gas wells, according to a new study.
âWeâre finding that when it comes to natural gas leaks, a 50/5 rule applies: That is, the largest 5 percent of leaks are typically responsible for more than 50 percent of the total volume of leakage,â said study co-authorÂ Adam Brandt, an assistant professor of energy resources engineering at Stanfordâs School of Earth, Energy & Environmental Sciences.
The findings, published online in the journalÂ Environmental Science & Technology, could lead to more efficient strategies for sampling emissions and fixing the most significant leaks, said Brandt, who is also a senior fellow at StanfordâsÂ Precourt Institute for Energy. By focusing on finding and fixing the biggest emitters, companies can significantly reduce the amount of methane leaking into the atmosphere.
Scientists have detected high levels of a toxin produced by freshwater algae in mussels from San Francisco Bay. Although shellfish harvested from California's coastal waters are monitored for toxins produced by marine algae, they are not routinely tested for this freshwater toxin, called microcystin.
The toxin, which causes liver damage, is produced by a type of cyanobacteria (also known as blue-green algae) that thrives in warm, nutrient-rich water conditions. It has been found in many lakes and rivers in California, including the Sacramento and San Joaquin Rivers, which flow into the San Francisco Bay Delta, and in several Bay Area lakes.
The idea of eating bugs has created a buzz lately in both foodie and international development circles as a more sustainable alternative to consuming meat and fish. Now a report appearing in ACSâÂ Journal of Agricultural and Food ChemistryÂ examines how the nutrients â particularly iron â provided by grasshoppers, crickets and other insects really measures up to beef. It finds that insects could indeed fill that dietary need.
Fine particulate matter air pollution may be associated withÂ blood vesselÂ damage and inflammation among young, healthy adults, according to new research inÂ CirculationÂ Research, an American Heart Association journal.
âThese results substantially expand our understanding about how air pollution contributes to cardiovascular disease by showing that exposure is associated with a cascade of adverse effects,â said C. Arden Pope, Ph.D., study lead author and Mary Lou Fulton Professor of Economics at Brigham Young University in Provo, Utah.
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.
The United Nations World Health Organization (WHO) in partnership with the Coalition for Climate and Clean Air (CCAC) and the Government of Norway has launched a global awareness campaign on the dangers of air pollution â especially âinvisible killersâ such as black carbon, ground-level ozone and methane â for the health of individuals and the planet.
TitledÂ BreatheLife: Clean air. A healthy future, the campaign aims to mobilize cities and their inhabitants on issues of health and protecting the planet from the effects of air pollution. Moreover, By WHO and CCAC joining forces, âBreatheLifeâ brings together expertise and partners that can tackle both the climate and health impacts of air pollution.
Declining populations of pollinators is a major concern to ecologists because bees, butterflies and other insects play a critical role in supporting healthy ecosystems. Now a new study from urban ecologists at the University of Massachusetts Amherst suggests that when urban and suburban lawns are left untreated with herbicides, they provide a diversity of âspontaneousâ flowers such as dandelions and clover that offer nectar and pollen to bees and other pollinators.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.
Following the news that the UK government is to ban plastic microbeads by the end of 2017, a team of scientists led by the University of Oxford has discovered the first evidence of microplastics being ingested by deep-sea animals.
Researchers working on the Royal Research Ship (RRS) James Cook at two sites in the mid-Atlantic and south-west Indian Ocean found plastic microfibres inside creatures including hermit crabs, squat lobsters and sea cucumbers at depths of between 300m and 1800m.
Household dust exposes people to a wide range of toxic chemicals from everyday products, according to a study led by researchers at Milken Institute School of Public Health (Milken Institute SPH) at the George Washington University. The multi-institutional team conducted a first-of-a-kind meta-analysis, compiling data from dust samples collected throughout the United States to identify the top ten toxic chemicals commonly found in dust. They found that DEHP, a chemical belonging to a hazardous class called phthalates, was number one on that list. In addition, the researchers found that phthalates overall were found at the highest levels in dust followed by phenols and flame retardant chemicals.
A new WHO air quality model confirms that 92% of the world's population lives in places where air quality levels exceed WHO limits. Some 3 million deaths a year are linked to exposure to outdoor air pollution. Indoor air pollution can be just as deadly. In 2012, an estimated 6.5 million deaths (11.6% of all global deaths) were associated with indoor and outdoor air pollution together.
Around the world -- from tundra to tropical forests, and a variety of ecosystems in between -- environmental researchers have set up micrometeorological towers to monitor carbon, water, and energy fluxes, which are measurements of how carbon dioxide (CO2), water vapor and energy (heat) circulate between the soil, plants and atmosphere. Most of these sites have been continuously collecting data, some for nearly 25 years, monitoring ecosystem-level changes through periods of extreme droughts and rising global temperatures. Each of these sites contributes to a regional network -- i.e. the European Network (Euroflux) or the Americas Network (AmeriFlux) -- and the regional networks together comprise a global network called FLUXNET.
Vermont will soon be the first state in the nation to require labels on genetically modified (GMO) foods. ItsÂ GMO-labeling law, the first passed in the nation,Â goes into effect on July 1. Maine and Connecticut have since passed their own GMO-labeling laws. But they wonât go into effect until neighboring states pass similar legislation.
Air pollution is a known risk factor for certainÂ mental health problemsÂ in adults, but a new study also links high rates of air pollution to poorer psychiatric health in children and adolescents.
To investigate this link, researchers fromÂ UmeÃ¥ University in Sweden examined what is known as âregister-basedâ data. All medications given to Swedish people are registered, and in this case, researchers zeroed in on individuals under ageÂ 18 from Stockholm,Â VÃ¤stra GÃ¶taland, SkÃ¥ne and VÃ¤sterbotten. They thenÂ looked at this information in connection with the Swedish National Register, which logs air pollution.
High blood pressure was associated with short-term and long-term exposure to some air pollutants commonly associated with the burning/combustion of fossil fuels, dust and dirt, a new study shows. Researchers suggest people -- especially those with high blood pressure -- limit their time outdoors when pollution levels are high.
TheÂ National Academy of SciencesÂ has some conclusions to share about genetically-engineered foods â 420 pages worth. And no matter which side of the fence you stand on when it comes to this divisive topic, you probably arenât going to like what the nonprofit has to say.
The report,Â Genetically Engineered Organisms: Experiences and Prospects, was released last week online amid a flurry of news articles that attempted to breathlessly summarize the findings in a few short sentences. Some expressed disappointment in the authorsâ inconclusive findings; many others attempted to pin aÂ final yea-or-nayÂ viewpoint on the Academyâs nine-chapter investigation.