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  Laboratório em São Paulo, no Brasil, onde se está a desenvolver uma vacina para o novo coronavírus Imagem: Sebastião Moreira / EPA   Quando uma pandemia como a do novo coronavírus se alastra pelo mundo, uma das grandes necessidades é obviamente o desenvolvimento de uma vacina ou de outro tratamento específico. Mas, para isso, é preciso tempo para se criar algo eficaz e seguro. Como se pode ent...
  Icebergs calving off Thwaites Glacier occasionally capsize and launch seismic waves that travel hundreds of kilometers. Credit: David Vaughan, British Antarctic Survey     Icebergs calve off glaciers all the time. But most don’t pitch backward, capsize, and send seismic waves radiating out for thousands of kilometers. New research reports that such “glacial earthquakes” have now been detected for the first time on Antarctica’s...
  An ash plume from Krakatau volcano today (image: PVMBG)   After a month of calm, activity of the volcano continues at moderately levels. PVMBG reported that several small explosions occurred from the active crater. An ash plumes reached 3,000 ft (914 m) altitude. Additionally recorded 6 volcano-tectonic earthquakes and 1 volcanic tremor. There is a 2 km exclusion zone around the main crater in place.   Fonte: volcanodiscovery.com (25-03-2020...
  Scientists have shown that mineral carbonation can permanently capture and store carbon quickly enough and safely enough to rise to the challenge of climate change. Iceland’s Hellisheiði Geothermal Power Station, above, is the third largest geothermal power station in the world and the site of ongoing mineral carbonation experiments. Credit: Árni Sæberg   In carbon storage experiments tied to geothermal power plants in Iceland, 90% of...