je.st
news
Tag: earths
Earth's Lakes Are Warming Faster Than The Oceans And Atmosphere
2015-12-21 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Associated Press: Some of the world's biggest temperature jumps are happening in lakes an ominous sign that suggests problems such as harmful algae blooms and low-oxygen zones hazardous to fish will get worse, says a newly released scientific report. An analysis of 235 lakes that together hold more than half the earth's fresh surface water found they have warmed an average of 0.61 degrees Fahrenheit or 0.34 degrees Celsius per decade, the report said. While seemingly insignificant, the increase is bigger than...
Tags: faster
warming
atmosphere
lakes
Examination Earth's recent history key predicting global temperatures
2015-12-18 13:53:00| Climate Ark Climate Change & Global Warming Newsfeed
PhysOrg: Estimates of future global temperatures based on recent observations must account for the differing characteristics of each important driver of recent climate change, according to a new NASA study published Dec. 14 in the journal Nature Climate Change. To quantify climate change, researchers need to know the Transient Climate Response (TCR) and Equilibrium Climate Sensitivity (ECS) of Earth. Both values are projected global mean surface temperature changes in response to doubled atmospheric carbon...
Tags: recent
history
key
global
Melting glaciers blamed for subtle slowing of Earth's rotation
2015-12-11 20:45:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: The melting of glaciers caused by the world's rising temperatures appears to be causing a slight slowing of the Earth's rotation in another illustration of the far-reaching impact of global climate change, scientists said on Friday. The driving force behind the modest but discernible changes in the Earth's rotation measured by satellites and astronomical methods is a global sea level rise fueled by an influx of meltwater into the oceans from glaciers, the researchers said. "Because glaciers...
Tags: rotation
subtle
melting
blamed
Study uncovers influence of Earth's history on the dawn of modern birds
2015-12-11 13:00:00| LifeSciencesWorld
[NEWS] New research led by the American Museum of Natural History reveals that the evolution of modern birds was greatly shaped by the history of our planet's geography and climate. The DNA-based work, published today in the journal Science Advances, finds that birds arose in what is now South America around 90 million years ago, and radiated extensively around the time of the Cretaceous-Paleogene extinction event that killed off the non-avian dinosaurs. The new research suggest…
Tags: history
study
modern
influence
First explanations for boundary within Earth's mantle
2015-12-11 00:03:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Earth's mantle, the large zone of slow-flowing rock that lies between the crust and the planet's core, powers every earthquake and volcanic eruption on the planet's surface. Evidence suggests that the mantle behaves differently below 1 megameter (1,000 kilometers, or 621 miles) in depth, but so far seismologists have not been able to explain why this boundary exists. Two new studies co-authored by University of Maryland geologists provide different, though not necessarily incompatible, explanations....
Tags: boundary
explanations
mantle
earths
Sites : [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] next »