#Rumen

Bulgarian Prime Minister Rumen Radev said ​Friday that his country will cut the stay of the U.S. military aircraft in Sofia at the end of June after the Trump administration did not greenlight a visa-free pass for Bulgarian visitors to the U.S.…

From Latest articles | smithsonianmag.com: Why Do Cows Burp Up So Much Planet-Warming Methane? A Newly Discovered Structure in Their Gut Microbes Could Be a Culprit

When cows burp, they send a substantial amount of methane gas into the air, which makes them a leading contributor to greenhouse gas emissions.…