Flood Waters Inundate Coastal Peru

Mulitple storms hit Peru’s north coast between March 19 and 23, bringing heavy rain and lightning. Even after the worst of the storms had passed, the rains continued in the country’s north. Some meteorologists have pointed to extremely warm waters off Peru’s coast as a possible source for the high levels of moisture in the atmosphere.

Turquoise Tendrils

A natural-color image of what appears to be a phytoplankton bloom off the coast of Tunisia. It is also possible that the discoloration is from sediment.Most blooms are benign, but some can become harmful when they consume too much of the oxygen in the water or when the phytoplankton species are toxic.

Venice Fights Back

The world’s most beautiful city has never been more threatened. But a passionate movement of locals is determined to keep it alive.

Parts of Earth’s Original Crust Exist Today in Canada

Rocks from the eastern shore of the Hudson Bay in Canada contain elements of some of Earth’s earliest crust, new research finds. The rocks themselves are granites that are 2.7 billion years old, but they still hold the chemical signals of the precursor rocks that were melted and recycled to form the rocks that exist today.

Caspian Sea: Largest Inland Body of Water

The Caspian Sea is the Earth’s largest inland body of water. Despite its name, it can be called either a lake or a sea. The question of whether it is a lake or a sea has political and economic ramifications. If the Caspian Sea is a lake, then the United Nations and international law have no control over its waters. If it is a sea, international organizations can have input on its use.