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If we do nothing to reduce our carbon dioxide (CO2) emissions, by the end of this century the Earth will be as hot as it was 50 million years ago in the early Eocene, according to a new study out today in the journal Nature Communications. This period -- roughly 15 million years after dinosaurs went extinct and 49.8 million years before modern humans appeared on the scene -- was 16F to 25F warmer than the modern norm. [...] During the Eocene, it took more atmospheric CO2 to influence temperatures than it does today. In fact, if we don't change our behavior, 2100 will be as hot as the Eocene with much less atmospheric CO2 than was present at the time. A hotter sun means we get more bang for our CO2 buck. "Climate change denialists often mention that CO2 was high in the past, that it was warm in the past, so this means there's nothing to worry about," said lead study author Gavin Foster, a researcher in isotope geochemistry and paleoceanography at the United Kingdom's University of Southampton. "It's certainly true, that the CO2 was high in the past and that it was warm in the past. But because the sun was dimmer, the climate wasn't being forced as much [as it will be] in the future if we carry on as we are." |
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| There are no conversations. |
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| cauz |
April 5, 2017, 7:09 p.m. |
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| Sylvia Earle |
Ocean acidification - the excess carbon dioxide in the atmosphere that is turning the oceans increasingly acid - is a slow but accelerating impact with consequences that will greatly overshadow all the oil spills put together. The warming trend that is CO2-related will overshadow all the oil spills that have ever occurred put together. |
| Paul Feig |
What I don't like is when I see stuff that I know has had a lot of improv done or is playing around where there's no purpose to the scene other than to just be funny. What you don't want is funny scene, funny scene, funny scene, and now here's the epiphany scene and then the movie's over. |
| James Fallows |
Chinese emissions are a problem not just for its own people but also for the world. It has now overtaken the U.S. as the biggest carbon emitter; most of the coal that is burned anywhere on Earth is burned in China. |
| C. L. R. James |
The international proletariat first appeared on the scene in the early Thirties of the nineteenth century, and its first great action was the French Revolution of 1848. |
| Stacey Farber |
Everyone I went to school with went to university, or took a year off and then went, and that was the norm - so I did the same thing. |
| James Baker |
When you have energy companies like Shell and British Petroleum, both of which are perhaps represented in this room, saying there is a problem with excess carbon dioxide emission, I think we ought to listen. |
| Ken Ham |
Based on the Bible, I believe that all the land animals were made on day six, and Adam and Eve were made on day six, and people try to make fun of us for believing that dinosaurs lived with people, but there are a lot of animals living today that evolution says lived with dinosaurs. |
| Italo Calvino |
What is modern art but the attempt to pinpoint vague, incorporeal, inexpressible sensations? What is modern art, I would add, but the most solemn pile of nonsense that ever appeared on Earth? |
| Gerry Adams |
If I didn't forgive the people who took me into the barracks and beat me unconscious over a period of days during the period when the British state was indicted for inhuman and degrading treatment in 1971-72, or even the guys who shot me, if you don't forgive them, you end up with unnecessary baggage. |
| Eileen Davidson |
Some people say I appeared on the Phil Donahue show to tell 'my' sex change story but I've never appeared on his show for any reason... not even as a member of the studio audience. |
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Scientists announced the discovery of stone tools dating to 2.1 million years ago in Shangchen, China, the oldest evidence of hominins outside Africa.
The finding doesn’t necessarily indicate that it was Homo erectus which made it to China faster than previously thought. It’s believed Homo erectus hadn’t even evolved by this point, so the artifacts could suggest that a whole other species of hominins expanded east to Asia.
“The implications of all this are large,” Michael Petraglia, a paleoanthropologist at the Max Planck Institute not involved in the study, tells Zimmer. “We must re-evalua...
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New Study Suggests Humans Lived In North America 130,000 Years Ago
In 1992, archaeologists working a highway construction site in San Diego County found the partial skeleton of a mastodon, an elephant-like animal now extinct. Mastodon skeletons aren't so unusual, but there was other strange stuff with it. "The remains were in association with a number of sharply broken rocks and broken bones," says Tom Demere, a paleontologist at the San Diego Natural History Museum. He says the rocks showed clear marks of having been used as hammers and an anvil. And some of the mastodon bones as well as a tooth showed fractures characteristic of being whacked, apparently with those stones. It looked like the work of humans. Yet there were no cut marks on the bones showing that the animal was butchered...
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Experimental Device Generates Electricity From the Coldness of the Universe (phys.org)
An international team of scientists has demonstrated for the first time that it is possible to generate a measurable amount of electricity in a diode directly from the coldness of the universe. The infrared semiconductor device faces the sky and uses the temperature difference between Earth and space to produce the electricity. In contrast to leveraging incoming energy as a normal solar cell would, the negative illumination effect allows electrical energy to be harvested as heat leaves a surface. Today's technology, though, does not capture energy over these negative temperature differences as efficiently. By pointing their device toward space, whose temperature approaches mere degrees from absolute ze...
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The passenger pigeon went extinct in 1898. That means there are no living humans today that have seen one.
Crazy how every hundred years or so the world gets a whole new set of people.
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'Great Dying': Rapid Warming Caused Largest Extinction Event Ever, Report Says (theguardian.com)
Rapid global warming caused the largest extinction event in the Earth's history, which wiped out the vast majority of marine and terrestrial animals on the planet, scientists have found. The mass extinction, known as the "great dying," occurred around 252m years ago and marked the end of the Permian geologic period. The study of sediments and fossilized creatures show the event was the single greatest calamity ever to befall life on Earth, eclipsing even the extinction of the dinosaurs 65m years ago. Up to 96% of all marine species perished while more than two-thirds of terrestrial species disappeared. The cataclysm was so severe it wiped out most of the planet's trees, insects, plants, liza...
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some dude on the internet thinks 1 btc will equal a half a million dollars+ in 10 years
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Scientists Confirm There Was Life On Earth 3.5 Billion Years Ago (http://www.pnas.org/content/early/2017/12/12/1718063115)
Paleobiologists have confirmed today that life forms existed some 3.5 billion years ago. The new study, published in the journal Proceedings of the National Academy of Sciences, uses the latest techniques to date the most aged remains available. Quartz reports:
The research, led by paleobiologist William Schopf of the University of California-Los Angeles and geoscientist John Valley of the University of Wisconsin-Madison, has been in the works for what seems a long time to most, but which the academics know is merely a blink of the eye in terms of life on Earth. The sp...
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When our ancestors first migrated out of Africa around 60,000 years ago, they were not alone. At least two of our hominid cousins had made the same journey?Neanderthals and Denisovans. Neanderthals, the better known of the two species, left Africa about 300,000 years ago and settled in Europe and parts of western Asia. The Denisovans are a much more recent addition to the human family tree. In 2008, paleoanthropologists digging in a cave in southern Siberia unearthed a 40,000-year-old adult tooth and an exquisitely preserved fossilized pinkie bone that had belonged to a young girl who was between five and seven years old when she died.
Photo: Entrance to a cave in a cliff wall in SiberiaRecently, scientists successfully extracted nuclear DNA from the pinkie bone and conducted comparison ...
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Mars Had Big Rivers For Billions of Years, Study Suggests
A new study suggests that Mars once had giant rivers larger than anything on Earth after the planet lost most of its atmosphere to space. "That great thinning, which was driven by air-stripping solar particles, was mostly complete by 3.7 billion years ago, leaving Mars with an atmosphere far wispier than Earth's," reports Space.com. "But Martian rivers likely didn't totally dry out until less than 1 billion years ago, the new study found." From the report:
"We can start to see that Mars didn't just have one wet period early in its history and then dried out," study lead author Edwin Kite, an assistant professor of geophysical scien...
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i realized i have trouble expressing myself due to my past experiences and the overwhelming nature of them. my dad left my mom 2 years after i was born. my brother has lived in japan for almost 10 years. my mom was wrongfully fired and unemployed for almost 2 years while i was in college, food stamps was a savior to us. I watched the 'plug being pulled' on my grandpa 3 years ago. watched my dog die and literally take his last breath a year later. my grandma died a few months ago.
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