je.st
news
Tag: humans
Canadians Split Role Of Humans On Climate Change
2016-02-24 02:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Tech Times: Although the majority of Canadians believe that climate change is real, some think that it is partly or mostly caused by human activities, while some do not think so. A new study conducted by researchers from four different universities found that public opinion about climate change is significantly divided. The group of scientists from the University of Montreal, Yale University, University of California Santa Barbara, and Utah State University had surveyed a total of 5,000 Canadians over...
Tags: change
role
split
humans
Humans speeding up evolution by causing extinction of 'younger' species
2016-02-23 13:00:00| LifeSciencesWorld
[NEWS] Just three years after crayfish were introduced to a B.C. lake, two species of fish that had existed in the lake for thousands of years were suddenly extinct. But it's what took their place that has scientists fascinated. New research from UBC shows that when humans speed up the usually slow process of evolution by introducing new species, it can result in a lasting impact on the ecosystem. The phenomenon is known as reverse speciation and researchers witnessed it in Eno…
Tags: evolution
humans
species
causing
Humans settled, set fire to Madagascar's forests 1,000 years ago
2016-02-18 13:00:00| LifeSciencesWorld
[NEWS] There's no question that our species has had a dramatic impact on the planet's physical environment, particularly over the last few centuries, with the rise of modern industry, transportation, and infrastructure. But as new research shows, humans have been transforming the landscape, with lasting impacts, since long before the start of the Industrial Era. Scientists from MIT and the University of Massachusetts at Amherst have found that a widespread and permanent loss…
Humans settled, set fire to Madagascar's forests 1,000 years ago
2016-02-18 12:34:00| Climate Ark Climate Change & Global Warming Newsfeed
PhysOrg: Scientists from MIT and the University of Massachusetts at Amherst have found that a widespread and permanent loss of forests in Madagascar that occurred 1,000 years ago was due not to climate change or any natural disaster, but to human settlers who set fire to the forests to make way for grazing cattle. The researchers came to this conclusion after determining the composition of two stalagmites from a cave in northwestern Madagascar. Stalagmites form from water that percolates from the surface,...
CU-Boulder study: Ancient extinction of giant Australian bird points to humans
2016-01-29 03:44:00| Climate Ark Climate Change & Global Warming Newsfeed
Science Codex: The first direct evidence that humans played a substantial role in the extinction of the huge, wondrous beasts inhabiting Australia some 50,000 years ago -- in this case a 500-pound bird -- has been discovered by a University of Colorado Boulder-led team. The flightless bird, known as Genyornis newtoni, was nearly 7 feet tall and appears to have lived in much of Australia prior to the establishment of humans on the continent 50,000 years ago, said CU-Boulder Professor Gifford Miller. The evidence...
Tags: study
points
humans
australian
Sites : [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] next »