TFG ClimateChange Complete. How Zero-Waste People Make Only a Jar of Trash a Year. This story is part of Planet or Plastic? —our multiyear effort to raise awareness about the global plastic waste crisis. Learn what you can do to reduce your own single-use plastics, and take your pledge. Join a conversation with Kathryn Kellogg on zero waste on Reddit at 2 pm ET May 18. Imagine 15 grocery bags filled with plastic trash piled up on every single yard of shoreline in the world. That’s how much land-based plastic trash ended up in the world’s oceans in just one year. The world generates at least 3.5 million tons of plastic and other solid waste a day, 10 times the amount a century ago, according to World Bank researchers. And yet there are a growing number of people—often young millennial women—who are part of a zero-waste movement.
Kathryn Kellogg is one of those young millennials who has downsized her trash pile—anything that hasn’t been composted or recycled—so two years' worth literally fits inside one 16-ounce jar. A Thriving Community Questioning What’s Normal 1. 2. 3. How to fit 4 years of trash into a mason jar, a zero waste experiment - The Kid Should See This. Impacts Videos - Our Climate Our Future. The Habitable Planet Unit 1 - Many Planets, One Earth // Online Textbook.
Untitled. Climate Change: Vital Signs of the Planet: Engage: Changing Climate. If the evidence for global climate change is not understood or the potential impacts recognized, the challenges these present to the world cannot be addressed. There must be familiarity with the evidence of global climate change and how new technologies and policies can help address its challenges. Knowing how key Earth systems are changing in response to climate change and how they have changed in the past is crucial to understanding how they will likely change in the future. Similar to a doctor who checks a patient's vital signs-pulse, heartbeat, temperature, and so on-scientists regularly check Earth's vital signs, which informs us about the health of our planet: global temperature, atmospheric CO2, Arctic sea ice, land ice, and sea level. Take a view from space at the "Blue Marble" and review your understanding of the Earth as a system. Meanwhile, in the tropics, local communities face different climate-change related challenges.
Science Bulletins: The Ecology of Climate Change. Interviewing tips. Plastic island: How our trash is destroying paradise. Lichens are an early warning system for forest health. View the slideshow Ecologist Linda Geiser works her way through thick undergrowth on the steep hills of the Bull Run Watershed just outside of Portland, Ore. Every step in her heavy boots is deliberate. It would be easy to break an ankle here, or worse. A dense sea of ferns and berry bushes hides deep pits and sharp fallen branches. This treacherous slope is a U.S. Fringed and fuzzy, or as slick as a coat of paint, lichens are mosaics of fungi partnered with algae or cyanobacteria that speckle tree bark and dangle from the canopy (SN: 11/7/09, p. 16).
“Where there is pollution, there is a predictable effect on lichens,” Geiser says. In the presence of high levels of excess nitrogen, moderately sensitive wolf lichens (Letharia vulpine, left) languish while candleflame lichens (Candelaria pacifica, right) thrive. Pollution builds up inside lichen tissues in proportion to its concentration in the wider environment. That’s why Geiser is hiking in the shadow of Mount Hood. Amy McDermott R. A. Explainer: Global warming and the greenhouse effect | Science News for Students. Earth’s atmosphere works something like a giant glass greenhouse. As the sun’s rays enter our atmosphere, most continue right down to the planet’s surface. As they hit the soil and surface waters, those rays release much of their energy as heat. Some of the heat then radiates back out into space. However, certain gases in our atmosphere, such as carbon dioxide, methane and water vapor, work like a blanket to retain much of that heat.
But there can be too much of a good thing. By examining air bubbles in ice cores taken from Antarctica, scientists can go back and calculate what the concentrations of carbon dioxide in the atmosphere have been throughout the last 650,000 years. Humans have further increased the levels of greenhouse gases in the air by changing the landscape. “We’ve always had some greenhouse gases in the atmosphere,” Solomon says. Power Words carbon dioxide A gas produced by all animals when the oxygen they inhale reacts with the carbon-rich foods that they’ve eaten. The consensus project. The 97% consensus on global warming. Science achieves a consensus when scientists stop arguing. When a question is first asked – like ‘what would happen if we put a load more CO2 in the atmosphere?’ – there may be many hypotheses about cause and effect.
Over a period of time, each idea is tested and retested – the processes of the scientific method – because all scientists know that reputation and kudos go to those who find the right answer (and everyone else becomes an irrelevant footnote in the history of science). Nearly all hypotheses will fall by the wayside during this testing period, because only one is going to answer the question properly, without leaving all kinds of odd dangling bits that don’t quite add up.
Bad theories are usually rather untidy. But the testing period must come to an end. So a consensus in science is different from a political one. Authors of seven climate consensus studies — including Naomi Oreskes, Peter Doran, William Anderegg, Bart Verheggen, Ed Maibach, J. Update July 2015: Oceans of Kansas Paleontology.
After losing huge amount, Greenland ice is melting faster than ever. A new study has calculated just how much ice Greenland has lost since the year 1900. The number is astounding: 9,103 gigatons. A gigaton is a billion metric tons. For reference, the Statue of Liberty weighs about 200 metric tons. The study was completed by 16 authors and was published in the magazine Nature. The lead author was Kristian K. Kjeldsen of the Natural History Museum of Denmark at the University of Copenhagen. Estimating the loss of ice was not easy. All were merged to provide the new ice loss estimates.
How Greenland Affects Earth's Waters The study offers a better understanding of how Greenland's ice loss has contributed to sea level rise. It shows that the ice in Greenland is starting to melt more quickly. The study notes that ice melted in Greenland throughout the 20th century. Humans And Global Warming However, the speed of ice loss increased rapidly as major human-caused global warming kicked in. The Inch Felt Round The World Keeping The Melt Under Control. News | The Fingerprints of Sea Level Rise. When you fill a sink, the water rises at the same rate to the same height in every corner.
That's not the way it works with our rising seas. According to the 23-year record of satellite data from NASA and its partners, the sea level is rising a few millimeters a year -- a fraction of an inch. If you live on the U.S. East Coast, though, your sea level is rising two or three times faster than average. If you live in Scandinavia, it's falling. Residents of China's Yellow River delta are swamped by sea level rise of more than nine inches (25 centimeters) a year. These regional differences in sea level change will become even more apparent in the future, as ice sheets melt. Tides, winds and ocean currents play a role in these regional differences, but an increasingly important mover and shaker is the solid Earth itself.
Unless a volcano or earthquake is in the news, we tend to think of our home planet as solid rock. These weight-filled dents in the mantle don't make a permanent scar. Climate Change Animation Shows Devastating Effects. Treading Water - Map: The Cost of Climate Change in 2050. What the massive snowfall in Boston tells us about global warming. Boston witnessed an additional two feet of snow from another storm on Friday, making it the third snowiest February on record for the city.
(The Washington Post) The snowfall in Boston lately is simply insane. The local bureau of the National Weather Service has tallied up the data and here’s how it looks — with all time records for snow within a 14-, 20-, and 30-day period: You could treat this as ordinary weather, or, you could think about it in a climate context. Counter-intuitive though it may sound, the fact remains that — as I have noted previously — some kinds of winter precipitation could indeed be more intense because we’re in a warming world.
Consider, for instance, that sea surface temperatures off the coast of New England are flashing red, showing an extreme warm anomaly. “Sea surface temperatures off the coast of New England right now are at record levels, 11.5C (21F) warmer than normal in some locations,” says Penn State climate researcher Michael Mann.