The study indicates that regional water availability limits both the current and future production of 32 geological resources ...

A planetary alignment ... the horizon free of obstructions like trees or tall buildings. Unable to view our graphics? Click here to see them. It's not especially remarkable for a few planets ...

Therefore, there are concerns about whether production of geological resources can continue within the sustainable use limit (planetary boundary) of water availability, or if production can be ...

(Bloomberg) -- Human activity is imperiling eight of the planet’s critical life-support systems and seven of them have already passed into a danger zone, according to a massive review of Earth ...

The study considered not only the carbon balance but also other planetary boundaries. Under the study's assumptions regarding the productivity of the plant species -- no new varieties over time ...