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The economic value of insect pollinators was $34 billion in the U.S. in 2012, much higher than previously thought, according to researchers at the University of Pittsburgh and Penn State University.

The lockdowns and reduced societal activity related to the COVID-19 pandemic affected emissions of pollutants in ways that slightly warmed the planet for several months last year, according to a new study by the National Center for Atmospheric Research (NCAR).

For decades, scientists have wrestled with rival theories to explain how interactions between species, like competition, influence biodiversity.

There are two main elements to observe when assessing sea level rise. 

The Arctic Ocean was covered by up to 900 m thick shelf ice and was filled entirely with freshwater at least twice in the last 150,000 years.