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Tag: impact

Ancient comet impact triggered fires, climate change, megafauna extinctions

Ancient comet impact triggered fires, climate change, megafauna extinctions

Science
March 13 (UPI) -- Scientists have uncovered new evidence that a cosmic impact sparked wildfires and triggered a period of global climate change at the end of the Pleistocene epoch some 13,000 years ago. Previously, researchers had only found evidence of the period of climatic change known as the Younger Dryas, or YDB, in the Northern Hemisphere. New findings, however, suggest the Southern Hemisphere also experienced a sudden climatic shift -- and much more. "We have identified the YDB layer at high latitudes in the Southern Hemisphere at near 41 degrees south, close to the tip of South America," James Kennett, geology professor emeritus at the University of California, Santa Barbara, said in a news release. Kennett is a proponent of the Younger Dryas Boundary Impact Hypothesis, which pos...
Decoded: All about Trai's new tariff order and how it'll impact you

Decoded: All about Trai's new tariff order and how it'll impact you

Finance
By R S SharmaYou receive an SMS on your phone from the Telecom Regulatory Authority of India (Trai) suggesting you to opt for TV channels à la carte or via bouquets as per the new Trai tariff order. Why are you receiving these messages? Trai, as broadcasting regulator, has a mandate to protect the interest of service providers and consumers while ensuring the orderly growth of the sector. It has to identify issues arising from the changing techno-commercial scenario. It has to be agile by regularly reviewing and revisiting regulations and market practices. These must incentivise the assimilation of new technologies, while curbing practices that adversely affect competition and create information asymmetries. In cable TV distribution, a major policy was initiated by GoI in November 2...
Asteroid impact rates increased 290 million years ago

Asteroid impact rates increased 290 million years ago

Science
Jan. 18 (UPI) -- Most people think of early Earth as a harsh, violent place. It's true that young Earth was hot and barren, but new research suggests that between 650 million years and 290 million years ago, asteroid impact rates were lower than usual. By studying the history of impacts on the lunar surface, scientists determined both Earth and its lunar satellite experienced a three-fold increase in asteroid impacts around the time dinosaurs first showed up on Earth's surface. Until now, scientists were perplexed by the dearth of impact craters older than 290 million years old. Many planetary scientists assumed the evidence of older craters had been eroded beyond recognition. But the latest research, published this week in the journal Science, suggests geologists have failed to find olde...
Study considers how climate change, shifting winds will impact migratory birds

Study considers how climate change, shifting winds will impact migratory birds

Science
Dec. 11 (UPI) -- New research suggests migratory birds in North America will be more likely to encounter headwinds as they fly southward each fall. However, changing wind patterns will make their springtime return less strenuous. Scientists at the Cornell Lab of Ornithology used radar observations collected at 143 weather stations to measure the altitude, density and direction of birds migrating during spring and fall. The most up-to-date climate models allowed researchers to determine how global warming and its affect on wind patterns will impact birds on the move. "We combined these data to estimate how wind assistance is expected to change during this century under global climate change," Frank La Sorte, a Cornell Lab of Ornithology scientist, said in a news release. "This matters for ...
talkSPORT host Jason Cundy heaps praise on Xherdan Shaqiri’s impact at Liverpool this season

talkSPORT host Jason Cundy heaps praise on Xherdan Shaqiri’s impact at Liverpool this season

Sports
SURPRISE PACKAGE Shaqiri joined the Reds for £13million in the summer but has played a bigger role than many could have predicted so far this season Former Chelsea man Jason Cundy has hailed the impact Xherdan Shaqiri has had on the Liverpool team so far this season. Shaqiri joined the Reds for £13million in the summer despite failing to guide his previous club Stoke away from relegation to the Championship in the 2017/18 campaign. Shaqiri celebrates scoring in the Reds’ 3-1 win at Burnley on Wednesday The Switzerland international was criticised for failing to help the Potters avoid the drop by former team-mate Charlie Adam. There were also doubts about how big a role Shaqiri would play in the first-team at Anfield but he h...