Home humans
 

Keywords :   


Tag: humans

97 out of 100 climate scientists agree: humans are responsible for warming

2013-05-16 16:52:00| Climate Ark Climate Change & Global Warming Newsfeed

Grist: The Earth revolves around the sun. Also, it`s overheating because we`re burning fossil fuels. Can you guess which of those two long-established facts just received an additional jolt of publicized near unanimity among scientists? It was, of course, the latter. (The oil industry has no economic interest in attempting to debunk the former, and you can no longer be persecuted for claiming it.) An international team of scientists analyzed the abstracts of 11,944 peer-reviewed papers published...

Tags: for responsible agree humans

 

Carbon dioxide reaches levels never seen by humans

2013-05-11 12:16:00| Climate Ark Climate Change & Global Warming Newsfeed

Greenpeace: The levels of the carbon dioxide in the atmosphere has reached 400 parts per million for the first time in human history. The last time levels were this high global average temperatures eventually reached 3 or 4C° higher than now, the polar regions were up to 10C° warmer than today the Greenland and Antarctic ice sheets were smaller and Sea level ranged between five and 40 meters (16 to 131 feet) higher than today. There are two reasons to be seriously worried by this year's CO2 measurements...

Tags: levels humans carbon reaches

 
 

The last time C02 was this high, humans didn't exist

2013-05-05 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Climate Central: The last time there was this much carbon dioxide (CO2) in the Earth's atmosphere, modern humans didn't exist. Megatoothed sharks prowled the oceans, the world's seas were up to 100 feet higher than they are today, and the global average surface temperature was up to 11°F warmer than it is now. As we near the record for the highest CO2 concentration in human history 400 parts per million climate scientists worry about where we were then, and where we're rapidly headed now. According to data...

Tags: time high exist humans

 

Scientists grow a mouse brain that looks like a humans

2013-05-03 20:32:55| Extremetech

The population of the developing brain with cells, is a mass-migratory event that proceeds with algorithmic precision. A recent publication uncovered a few of the molecular players that define this game. By manipulating one of these components researchers changed the normally smooth cortex of the mouse into one that has folds just like a human's.

Tags: grow mouse humans brain

 

Humans' indelible stamp on Earth clear 5000 years ago

2013-04-29 22:01:00| Climate Ark Climate Change & Global Warming Newsfeed

New Scientist: When did humans stamp our footprint on the planet? The idea that we have entered a geological epoch defined by our very presence the Anthropocene is gaining traction, but exactly when did this epoch begin? After the first atom bomb went off? At the start of the industrial revolution in the mid-18th century? Or was it a lot earlier? A new study argues that the Anthropocene began with the rise of farming or even in Neolithic times, when we took to widespread burning of the bush to hunt animals....

Tags: years ago clear earth

 

Sites : [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] next »