China will continue to enforce production restrictions in heavy industry in winter this year and will tighten its emission assessment on steel mills when granting exemptions from curbs already in place, an environment ministry official said on Saturday.
For almost all of human history, the Earth’s population has skewed younger. But since the last World Population Day on July 11, 2018, a major shift occurred: There are now more people age 65 and older than there are under age five.
A team of researchers is fascinated by the remains of an ancient bird with an unusual feature: Its middle toes are longer than the lower legs. The fossil was recovered from an amber deposit in Myanmar.