The Nature Index 2026 Research Leaders reveal the leading institutions and countries/territories in the natural sciences, health sciences, applied sciences and social sciences, according to their ...
Nitrogen makes up about four fifths of the air, yet many industries still need to produce it in a pure form. The reason is ...
It was our planet, immediately before humans – instantly recognisable, but only just. During the Middle Miocene, around 17 million to 15 million years ago, carbon dioxide levels in the atmosphere were ...
Source: National Oceanic and Atmospheric Administration’s Global Monitoring Laboratory The chart shows monthly numbers of carbon dioxide molecules per million molecules of dry air. Because of seasonal ...