On Food Waste, the US could learn a lot from Europe
January 13, 2017 07:28 AM - Nithin Coca , Triple Pundit
The U.S. tosses a staggering $161 billion worth of food every year. While numerous efforts are underway to address that problem, they are taking place mostly at the local level or in the business sector. While that is necessary, national- and international-level policy has a role to play as well. And that is one area in which Europe is far ahead.
China Announces End to Ivory Trade in 2017
January 4, 2017 06:18 PM - Laura Goldman, Care2
In an announcement that could prove to be extremely good news for elephants in the wild, the Chinese government has promised to end its domestic ivory market by the end of this year.
Every year, thousands of elephants are killed for their tusks by poachers. Between 2011 and 2014, more than 100,000 elephants were slaughtered. The African elephant population dropped 30 percent from 2007 to 2014. More elephants are being killed than are being born.
Global climate target could net additional six million tons of fish annually
December 24, 2016 07:50 AM - University of British Columbia
If countries abide by the Paris Agreement global warming target of 1.5 degrees Celsius, potential fish catches could increase by six million metric tons per year, according to a new study published in Science.
The researchers also found that some oceans are more sensitive to changes in temperature and will have substantially larger gains from achieving the Paris Agreement.
The Paris Climate Deal Is Now in Force. What Comes Next?
December 4, 2016 09:07 PM - Steve Williams, Care2
The Paris Agreement was hailed as a turning point for world governments tackling climate change, and it has now come into effect. What does this mean for the world — and where do we go from here?
On Friday, November 4, the Paris Agreement went into effect, meaning that the agreement made last year by nearly 200 international delegates must now be honored. To recognize the consensus coming into force, the United Nations stated that it is a moment to celebrate – and to take concerted action.
“We remain in a race against time,” UN Secretary General Ban Ki-moon emphasized. ”Now is the time to strengthen global resolve, do what science demands and seize the opportunity to build a safer, more sustainable world for all.”
Rising CO2 Threatens Coral And People Who Use Reefs
November 9, 2016 04:26 PM - Erin Mckenzie via Duke University
As atmospheric carbon dioxide (CO2) levels rise, very few coral reef ecosystems will be spared the impacts of ocean acidification or sea surface temperature rise, according to a new analysis. The damage will cause the most immediate and serious threats where human dependence on reefs is highest.
A new analysis in the journal Plos One, led by Duke University and the Université de Bretagne Occidentale, suggests that by 2050, Western Mexico, Micronesia, Indonesia, parts of Australia and Southeast Asia will bear the brunt of rising temperatures. Reef damage will result in lost fish habitats and shoreline protection, jeopardizing the lives and economic prosperity of people who depend on reefs for tourism and food.
A new study concludes warm climate is more sensitive to changes in CO2
November 9, 2016 02:46 PM - Rachel Lentz via University of Hawaii At Manoa
It is well-established in the scientific community that increases in atmospheric CO2 levels result in global warming, but the magnitude of the effect may vary depending on average global temperature. A new study, published this week in Science Advances and led by Tobias Friedrich from the International Pacific Research Center (IPRC) at the University of Hawaiʻi at Mānoa, concludes that warm climates are more sensitive to changes in CO2 levels than cold climates.
Major advance in solar cells made from cheap, easy-to-use perovskite
November 8, 2016 10:38 AM - University of California, Berkeley
Solar cells made from an inexpensive and increasingly popular material called perovskite can more efficiently turn sunlight into electricity using a new technique to sandwich two types of perovskite into a single photovoltaic cell.
Perovskite solar cells are made of a mix of organic molecules and inorganic elements that together capture light and convert it into electricity, just like today’s more common silicon-based solar cells. Perovskite photovoltaic devices, however, can be made more easily and cheaply than silicon and on a flexible rather than rigid substrate. The first perovskite solar cells could go on the market next year, and some have been reported to capture 20 percent of the sun’s energy.
New Delhi Air Pollution Reaches Highest Level In 20 Years
November 7, 2016 03:20 PM - Yale Environment 360
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, several 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.
Biodiversity needs citizen scientists
November 3, 2016 07:49 PM - Linda See, IIASA
Could birdwatching or monitoring tree blossoms in your community make a difference in global environmental research? A new study says yes: citizen scientists have a vital role to play.
Citizen scientists are already providing large amounts of data for monitoring biodiversity, but they could do much more, according to a new study published in the journal Biological Conservation, which suggests that citizen science has the potential to contribute much more to regional and global assessments of biodiversity. Citizen scientists are regular people who provide data or input to science, for example by monitoring species in their community or examining satellite imagery for evidence of deforestation or land use change.
“Citizen scientists are already contributing enormously to environmental science,” says IIASA researcher Linda See. “For example, a huge amount of species occurrence data is provided by members of the interested public. The question we addressed was, where are citizens contributing and where are they not, and how can we draw on this phenomenon to help fill the gaps in science?”
Super Emitters - are responsible for more than half of U.S. methane emissions
October 28, 2016 02:48 PM - Ker Than via Stanford School of Earth, Energy & Environmental Sciences
The bulk of methane emissions in the United States can be traced to a small number of “super emitting” natural gas wells, according to a new study.
“We’re 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,” said study co-author Adam Brandt, an assistant professor of energy resources engineering at Stanford’s School of Earth, Energy & Environmental Sciences.
The findings, published online in the journal 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 Stanford’s 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.