The Kazungula Bridge connects Zambia and Botswana, barely missing Namibia and Zimbabwe.
New research suggests the ocean current that delivers warm water to Europe has a one-in-six chance of halting temporarily over the next hundred years, potentially resulting in freezing temperatures.
You've likely heard of solar energy, but what is osmotic energy?
In India, a construction boom is fueling a criminal enterprise around one of the most ubiquitous substances on Earth: sand.
Antidepressants are destroying underwater ecosystems, which we in turn eat.