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The concentration of carbon dioxide in the atmosphere rose last year at the fastest rate on record. The spike has scientists worried that more and more carbon is coming from natural sources.
This ITU-R Handbook gives the technical basis for predicting the radio propagation in point-to-point, point-to-area, and point-to-multipoint mobile networks.
Staring at a crocodile or alligator can feel like looking back in history to the age of the dinosaurs. Their ancestors have ...
Biodiversity offers us innumerable benefits but it faces threats from a range of anthropogenic activities. How can ...
11 小时on MSN
Most people think of crocodilians as living fossils—stubbornly unchanged, prehistoric relics that have ruled the world's swampiest corners for millions of years. But their evolutionary history tells a ...
The American genetic engineering firm Colossal Biosciences recently announced to much fanfare it had "de-extincted" the dire ...
Research shows the mental processing of climate change information can lead to feelings of anxiety and doom. However, climate ...
Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls ...
Most people think of crocodylians as living fossils— stubbornly unchanged, prehistoric relics that have ruled the world's swampiest corners for ...
23 小时
MoneyWeek on MSNTrump wants to colonise Mars – will it happen?Not all of it. Earlier this year, US president Donald Trump promised Congress that he would “lead humanity into space and plant the American flag on the planet Mars and even far beyond”. He’s wrong, ...
Costa Rica’s highways are packed with animal lovers searching for a glimpse of a sloth or red-eyed tree frog. Too many of the nation’s iconic animals are killed by vehicle strikes on the busy roads.
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