这是我对气候变化最担忧的方面——当我们跨越不可逆转的界限，而非看到逐渐恶化时。
科学家们比以往任何时候都更担心大西洋关键洋流系统AMOC即将崩溃，这将对北美和欧洲造成严重破坏。这种不可逆转的临界点跨越是气候变化中最令人担忧的方面。
科学家们比以往任何时候都更担心大西洋关键洋流系统AMOC即将崩溃，这将对北美和欧洲造成严重破坏。这种不可逆转的临界点跨越是气候变化中最令人担忧的方面。
Research indicates that the heritability of human lifespan is approximately 50% when using a redefined concept of heritability. This suggests genetic factors account for about half of lifespan variation, while environmental and other factors contribute the remaining half.
Heritability measures how much of the variation in a trait within a population is due to genetic differences. It does not indicate how much of an individual's trait is determined by genes versus environment. The concept is often misunderstood in discussions about intelligence, personality, and other complex traits.