The argument that a growing headcount is bad for the planet obscures the climate solutions that can be drawn from the power ...

Since Edward Burtynsky’s birth in Ontario, Canada, in 1955, the Earth’s population has roughly tripled, and its economy has ...

What if the challenge for humanity’s future is not too many people on a crowded planet, but too few people to sustain the ...

Far more families are choosing to have fewer — or no — children. Many countries, including the U.S., now face a rapidly aging ...

Lake Champlain’s lake trout population is now self-sustaining, a goal that has been in the works for more than 50 years.

Over a century after Pareto’s observation, the Global South remains trapped in a cycle of concentrated wealth and entrenched ...

Global Citizen is turning to cities as it looks to break through what it sees as widespread political gridlock hindering ...

(Corrects headline to remove 'U.S.-backed aid group' and corrects paragraphs 1 and 2 to reflect that while the document bears ...

Our path towards sustainability and viable climate change adaptation and mitigation strategies isn’t just about more ...

With over 625 trillion cubic feet (TCF) of proven natural gas reserves, nearly 15 percent of the global total, Africa holds ...

A new study maps infectious diseases across millennia and offers new insight into how human-animal interactions permanently transformed our health landscape.