At the Tokyo 2020 Olympics, each day records are being set by the dozen. Globally, a different set of records are making history but for the wrong reasons.
The number of so-called “planetary vital signs” hitting new highs and lows, despite the restraint to human activity from the pandemic in the past year, were highlighted in a paper published earlier this week that tracked a set of various indicators related to climate change.
Glaciers have been melting at record pace; sea levels are at an all-time high, and concentrations of carbon dioxide, methane and nitrous oxide in the Earth’s atmosphere have never been so dense, the data show.
您已閱讀20%（640字），剩余80%（2629字）包含更多重要信息，訂閱以繼續(xù)探索完整內(nèi)容，并享受更多專屬服務(wù)。