President Donald Trump has called for an expansive, next-generation missile defense shield for the mainland United States, ...

An invitation to a community garden brought me new relationships, heightened confidence — not to mention veggies and eggs.

Trump’s order does not give any estimate of the costs of such a system, but several hundreds of billions of dollars would ...

Ecosystems and species across the natural world are in serious trouble. The vast majority of Australians want more government ...

In announcing a $35 billion program to bring inexpensive solar power to some 300 million Africans, officials left out two words: climate change.