Feed aggregator

A New Global Plastics Treaty Is Coming For Your Bags and Bottles

Slashdot.org - 18 min 47 sec ago

An anonymous reader quotes a report from Quartz: The world is choking in plastic trash, and the UN wants to do something to fix it. A weeklong meeting of the Intergovernmental Negotiating Committee (INC) on Plastic Pollution in Punta del Este, Uruguay, ended last Friday (Dec. 2). It was a first, formal step towards a legally binding international treaty to deal with the global plastics problem. Such a pact would be the most consequential environmental treaty in years, on par with 2015's Paris Agreement on climate change. The INC will spend the next two years negotiating how binding the regulations will be. While most of the 1,800 attendees in Uruguay ostensibly support ending plastic pollution as a baseline, competing motives have factions pulling in different directions. Hardline countries and campaigners are pushing for outright bans on "problem plastics" and certain chemicals, as well as internationally set regulations and strict production monitoring. Plastics industry coalitions -- which include the world's largest plastic producers, like Nestle and Unilever -- are calling for a focus on recycling and global targets defined by national priorities. Details of the treaty will have to be negotiated over the next couple of years. The High Ambition Coalition to End Plastic Pollution, made up of 45 countries, is calling to restrict the single-use plastics found in packaging and consumer goods. They make up half of the plastic waste produced today, so a restriction would hugely reduce pollution, as well as force a transformation for consumers -- and the companies producing their goods -- in the way they drink bottled water, order takeout, or buy cleaning products and cosmetics. An international standard for monitoring production would also try to ensure that plastics are chemically safe, genuinely recyclable, and durable enough to be reusable. Of the roughly 10,000 chemicals used in producing plastics, more than 2,400 have been found to be harmful, causing a range of health problems from asthma to infertility. Recycling is not currently viable for most plastics, but better production monitoring could shift that. Further reading: Is Plastic Recycling a Myth?

Supercomputer Re-Creates One of the Most Famous Pictures of Earth

Slashdot.org - 2 hours 8 min ago

sciencehabit shares a report from Science Magazine: Fifty years ago today, astronauts aboard Apollo 17, NASA's last crewed mission to the Moon, took an iconic photograph of our planet. The image became known as the Blue Marble -- the first fully illuminated picture of Earth, in color, taken by a person. Now, scientists have re-created that image during a test run of a cutting-edge digital climate model. The model can simulate climatic phenomena, such as storms and ocean eddies, at 1-kilometer resolution, as much as 100 times sharper than typical global simulations. To re-create the swirling winds of the Blue Marble -- including a cyclone over the Indian Ocean -- the researchers fed weather records from 1972 into the supercomputer-powered software. The resulting world captured distinctive features of the region, such as upwelling waters off the coast of Namibia and long, reedlike cloud coverage. Experts say the stunt highlights the growing sophistication of high-resolution climate models. Those are expected to form the core of the European Union's Destination Earth project, which aims to create a 'digital twin' of Earth to better forecast extreme weather and guide preparation plans.