Moths in cities have learned to avoid man-made light
April 13, 2016 11:35 AM - UNIVERSITY OF BASEL via EurekAlert
The globally increasing light pollution has negative effects on organisms and entire ecosystems. The consequences are especially hard on nocturnal insects, since their attraction to artificial light sources generally ends fatal. A new study by Swiss zoologists from the Universities of Basel and Zurich now shows that urban moths have learned to avoid light. The journal Biology Letters has published their results.
Some insects are attracted by light while others shy away from it. Proverbial is the attraction light has on moths. Street lamps and other artificial light sources often become death traps for nocturnal insects such as moths. Either they die through direct burning or through increased exposure to predators. Mortality of urban insects can thus be 40- to 100- fold higher than in rural populations.
Fast food may expose consumers to phthalates
April 13, 2016 07:16 AM - George Washington University via EurekAlert!
People who reported consuming more fast food in a national survey were exposed to higher levels of potentially harmful chemicals known as phthalates, according to a study published today by researchers at Milken Institute School of Public Health (Milken Institute SPH) at the George Washington University. The study, one of the first to look at fast-food consumption and exposure to these chemicals, appears in the journal Environmental Health Perspectives.
The Paris climate accord looks promising
April 12, 2016 08:04 PM - Robert N. Stavins, Director, Harvard Environmental Economics Program
The climate talks that concluded last December were a great success, but it will be decades before we can judge whether the Paris Agreement itself is ultimately successful. What can be said is that the accord provides a good foundation for meaningful progress on climate change, and represents a dramatic departure from the past 20 years of climate negotiations.
I have long viewed the dichotomous distinction between Annex I and non–Annex I countries in the Kyoto Protocol as the major stumbling block to progress. The protocol included mandatory emissions-reduction obligations for developed countries, but none for developing countries. That made progress impossible, because significant growth in emissions since the protocol came into force in 2005 has been entirely in the large developing countries — China, India, Brazil, South Korea, South Africa, Mexico, and Indonesia.
Reducing food waste could help mitigate climate change
April 11, 2016 07:33 AM - Potsdam Institute for Climate Impact Research
About a tenth of overall global greenhouse-gas emissions from agriculture could be traced back to food waste by mid-century, a new study shows. A team from the Potsdam Institute for Climate Impact Research for the first time provides comprehensive food loss projections for countries around the world while also calculating the associated emissions. Currently, one third of global food production never finds its way onto our plates. This share will increase drastically, if emerging countries like China and India adopt Western nutrition lifestyles, the analyses shows. Reducing food waste would offer the chance to ensure food security, which is well known. Yet at the same time it could help mitigate dangerous climate change.
Using moss as a bioindicator of air pollution
April 8, 2016 07:16 AM - USDA Forest Service via EurekAlert!
Moss growing on urban trees is a useful bio-indicator of cadmium air pollution in Portland, Oregon, a U.S. Forest Service Pacific Northwest Research Station-led study has found. The work--the first to use moss to generate a rigorous and detailed map of air pollution in a U.S. city--is published online in the journal Science of the Total Environment.
Illegal gold mining in Brazil exposing indigenous peoples to high levels of mercury
April 5, 2016 11:52 AM - Sarina Kidd / Survival International, The Ecologist
Illegal gold mining in the Amazon has a devastating effect on indigenous peoples, writes Sarina Kidd. First the miners bring disease, deforestation and even murder. Then long after they have gone, communities are left to suffer deadly mercury poisoning. Now the UN has been called on to intervene.
In Brazil, new statistics reveal alarming rates of mercury poisoning amongst the Yanomami and Yekuana. 90% of Indians in one community are severely affected, with levels far above that recommended by the WHO.
Mercury poisoning is devastating tribal peoples across Amazonia, Survival International has warned.
Scotland shuts down its last coal-fired electric power plant
April 2, 2016 08:16 AM - s.e. smith, Care2
After nearly 50 years of service, Scotland’s last coal-fired power plant — Longannet Power Station — has finally gone offline, putting an end to over 100 years of burning coal for electricity.
It’s an important moment for Scottish Power, which looks ahead to clean power initiatives with the goal of going all-renewable by 2020,
But it’s also a very symbolic action for the world. Hopefully other nations will follow suit, creating a domino effect as country by country eliminates its coal plants — like the one above — in favor of renewable alternatives.
The past, present and future of African dust
March 28, 2016 07:19 AM - National Center for Scientific Research
So much dust is scattered across the planet by the winds of the Sahara that it alters the climate. However, the emission and transport of this dust, which can reach the poles, fluctuate considerably. Although many hypotheses have been put forward to explain this phenomenon, no unambiguous relationship between this dust and the climate had been established until now. According to research carried out by a French-US team of researchers from LATMOS(CNRS/UVSQ/UPMC), CNRM(CNRS/Météo-France) and SIO3, meteorological events such as El Niño and rainfall in the Sahel have an impact on dust emission, by accelerating a Saharan wind downstream of the main mountain massifs of Northwest Africa. The scientists have also developed a new predictive model showing that emissions of Saharan dust will decline over the next hundred years. Their work is published in the 24 March 2016 issue of the journal Nature.
Supreme Court and the Obama Administration's Climate Plans
March 16, 2016 08:15 AM - michael b. gerrard, Yale Environment360
Two unexpected and shocking events have left heads swimming about the fate of President Obama’s signature initiative on climate change, the Clean Power Plan, which aims to replace many coal-fired power plants — the largest source of greenhouse gas emissions in the United States — with cleaner sources of energy.
Last Tuesday, the U.S. Supreme Court issued a stay on the Clean Power Plan until the litigation against it is finally resolved, suspending implementation of the plan for the foreseeable future. The vote was 5-4, along the customary ideological lines, and it led to great concern, bordering on quiet despair, among proponents of the plan. who now believed that the Supreme Court would ultimately strike it down. Opponents of the plan, including the coal industry, rejoiced.
The court’s order blocking Obama’s Clean Power Plan provides an opportunity for the U.S. to show other nations it has a flexible approach to cutting emissions, David Victor writes.
Recycled water may be a solution to the California drought
March 15, 2016 08:37 AM - 3BL Media, Care2
The severity and impact of the drought remains top-of-mind among Californians. They are eager for long-term solutions that can help the state to achieve a water-secure future. California residents are overwhelmingly supportive of using treated wastewater, or recycled water, in their everyday lives, according to a statewide survey released today by Xylem Inc. The survey found that 76 percent of respondents believe recycled water should be used as a long-term solution for managing water resources, regardless of whether or not a water shortage continues.
Nearly half, or 49 percent of respondents, are very supportive of using recycled water as an additional local water supply and another 38 percent are somewhat supportive. The survey defined recycled water as former wastewater that has been treated and purified so that it can be reused for drinking purposes. Of survey respondents, 42 percent are very willing to use recycled water in their everyday lives and an additional 41 percent are somewhat willing. These findings confirm that there is a significant number of Californians who support the use of recycled water.
“We conducted this survey in an effort to better understand public perception about recycled water, and are very encouraged by the findings,” said Joseph Vesey, Xylem Senior Vice President who leads the Company’s North American commercial business. “With overwhelming support from the public, California is well-positioned to lead the U.S. in accelerating the availability and acceptance of recycled water. The state has the opportunity to champion a flexible framework that recognizes the unique needs of local communities as they work to establish water resource strategies that include sustainable solutions, such as recycled water.”