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As plans are made for international travel to resume, covid-free countries may have to achieve herd immunity through vaccination before letting the rest of the world in
Ricardo Lima/Getty Images Round-the-clock acoustic recordings have been used to monitor the effects of logging and fires on biodiversity in tropical forests. Danielle Rappaport at the University of Maryland and her colleagues used historical satellite data to select sites in the southern Brazilian Amazon that had experienced logging or forest fires over the past few decades. They placed sound recorders at the sites in September and October 2016 to try to capture the acoustic markers of ecosystem degradation. The aim was to develop a way to measure … Continue reading Subscrib...
The Brazilian government has passed 57 legislative acts that weaken environmental protections, half of which occurred during the covid-19 pandemic
Ben Stansall/AFP via Getty Images From Monday 15 February, travellers arriving in England from a “red list” of 33 countries will be required to quarantine in a hotel for 10 days. But the ruling has been criticised as too little, too late, with not enough consistency to be effective. Travellers will be required to quarantine at their own expense, taking a covid-19 test on day two and day eight of their stay. The quarantine will be extended if a person tests positive. Advertisement The UK government has announced tough measures for individuals who provide false or deliberately misleading in...
Cultura RM / Alamy Many cities in the United States are underestimating their impact on the climate. A comparison of self-reported data from 48 US cities against independent estimates of fossil-fuel emissions has found that the urban centres are under-reporting their carbon emissions by 18.3 per cent on average. Kevin Gurney at Northern Arizona University and his colleagues have developed an automated measurement system known as Vulcan, which can estimate fossil-fuel emissions at specific geographic points and over large areas. Advertisement Vulcan makes its estimates based on dozens of publi...