The concept of a dollar having different spending power across American cities has reached a crucial tipping point. What once ...

The Amazon region is a global hotspot of biodiversity and plays a key role in the climate system because of its ability to store large amounts of carbon and its influence on the global water cycle.

Four key climate systems are showing signs of instability and approaching tipping points with potentially abrupt and ...

The recent debate between Vice President Kamala Harris and the former President Donald Trump focused relatively little on foreign affairs. This was probably a good thing, as when the conversation ...

The Earth’s climate system is highly complex and its components, which include the ocean, atmosphere, and vegetation, are closely interlinked. Changes in individual parameters can have far-reaching ...