雨楼: Israel has administered at least 14,148,244 doses of COVID vaccines so far. Assuming every person needs 2 doses, that’s enough to have vaccinated about 78.1% of the country’s population. (9-9 09:34)
锦候: “Cattle are the No. 1 agricultural source of greenhouse gases worldwide. Each year, a single cow will belch about 220 pounds of methane.”said Mitloehner, a professor and air quality specialist ... (9-7 02:14)
锦候: in the Department of Animal Science of UC Davis. (9-7 02:14)
锦候: a 2019 study published in Animal Frontiers found livestock is responsible for 14.5 percent of the world’s greenhouses gases. (9-7 04:12)