Mauna Loa: What to know about Hawaii's largest volcano as it rumbles

Officials on the Big Island of Hawaii are telling residents to be prepared in case Mauna Loa, the world's largest active volcano, erupts soon.

Emperor penguins now listed as threatened species

Emperor penguins will now receive new protections under the Endangered Species Act after the U.S. Fish and Wildlife Service says climate change is threatening to eradicate the species.

Watch: Rescuers free entangled humpback whale in Canada

The mammal became caught last Friday in the ropes of a large buoy from part of prawn gear off the coast of Texada Island in western Canada.

A green Halloween: How to make your spooky holiday more eco-friendly

From Halloween costume exchanges to pumpkin smashes, there’s no shortage of ways to celebrate the spooky holiday while also reducing waste.

Gas stoves in California leaking cancer-causing benzene, study finds

Homes in almost every region in the study — Greater Los Angeles, the San Francisco Bay Area, Sacramento and Fresno — had benzene levels that far exceed the limit determined to be safe.

New trend has teens dumping out milk in grocery stores

Videos that have popped up on social media show teens pouring milk onto the floor, over sales counters and elsewhere in the store.

Tomato, onion, garlic prices expected to increase amid ongoing California drought

About 94% of California fell under the severe, extreme, or exceptional drought categories as of last week. The state grows over a third of the nation's vegetables and 75% of its fruits and nuts.

New Zealand proposes taxing cow burps, pee to tackle climate change

New Zealand’s government is proposing a tax on the greenhouse gasses that farm animals make from burping and peeing as part of a plan to tackle climate change.