How New Mexico helps senior citizens and others not online get vaccinated alamogordonews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from alamogordonews.com Daily Mail and Mail on Sunday newspapers.
Snowfall in the West indicates 20-year drought will persist and intensify
April 15, 2021
Researchers with the University of Colorado work on the 2019 snow survey in the Green Lakes Valley, which includes the Arikaree Glacier and provides a substantial portion of the water supply for Boulder, Colorado. (Photo by Michael Kodas/Inside Climate News)
Sparse monsoon rainfall last summer and spotty snowfall this winter have combined to dramatically worsen the drought across the West in the past year, and spring snowmelt won’t bring much relief.
Critical April 1 measurements of snow accumulations from mountain ranges across the region show that most streams and rivers will once again flow well below average levels this year, stressing ecosystems and farms and depleting key reservoirs that are already at dangerously low levels.
How many T rexes were there? Billions - ScienceBlog com scienceblog.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from scienceblog.com Daily Mail and Mail on Sunday newspapers.
University Showcase 4/16 8a: From "War of the Worlds" to "The Martian Chronicles," the planet Mars has long held a grip on our popular imagination. But
Analysis of what’s known about the dinosaur leads to conclusion there were 2.5 billion over time.
How many Tyrannosaurus rexes roamed North America during the Cretaceous period?
That’s a question Charles Marshall pestered his paleontologist colleagues with for years until he finally teamed up with his students to find an answer.
What the team found, to be published this week in the journal
Science, is that about 20,000 adult T. rexes probably lived at any one time, give or take a factor of 10, which is in the ballpark of what most of his colleagues guessed.
What few paleontologists had fully grasped, he said, including himself, is that this means that some 2.5 billion lived and died over the approximately 2 1/2 million years the dinosaur walked the earth.