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Pond Sinkhole in China Swallows 25 Tons of Fish

Local villagers blame quarry work nearby.

A pond in China's Guangxi Zhuang autonomous region sprang a sinkhole that cost a local fish farmer some 25 tons of fish.

According to the, it's not clear what caused the sinkhole to open, but villagers suspect activity at a nearby quarry may have had some adverse effect on the body of water.

Another Massive Hole Appears In Siberia: Photos

Ultimately, the pond drained almost completely, according to the video below, from New China TV. The farmer estimates the financial loss from the swallowed fish to be more than US $75,000.

A second massive crater has appeared in a remote part of Siberia on the Yamal Peninsula, called "the end of the world." The new crater was discovered by reindeer herders about 30 kilometers (19 miles) from the first, reports the Moscow Times. Following this discovery, a third hole was found to the east of the other two. It's just 15 meters deep but 60-100 meters deep, locals report.

VIDEO: What Could Have Made Siberia's Mystery Crater?

It's uncertain yet what's caused the sinkholes, but experts said global warming may play a part. Above is a view of the wall inside the first crater.

VIDEO: What Are the Odds a Meteorite Will Hit You?

One theory: when permafrost melts, gas is released, causing an underground explosion.

BLOG: Mysterious, Giant Crater Appears in Siberia

Experts from the Center for the Study of the Arctic and the Cryosphere Institute of the Russian Academy of Sciences have studied the hole, returning with the first photos from the site.

BLOG: Dino-Era Water Trapped Under Impact Crater

"We can definitely say that it is not a meteorite," a spokesman from Russia's Emergencies Ministry told the Siberian Times.

PHOTOS: Global Warming Right Before Your Eyes

The area contains some of Russia's most plentiful stores of natural gas. About 10,000 years ago, the area was under the sea, which left salt deposits.

BLOG: Dire Outlook For Climate Impacts, New Report Says

The first hole is about 50 meters wide (164 feet, or about 15 stories) and 70 meters deep (229 feet, about 21 stories), reports the Moscow Times. The second appears similar, but is much smaller. Scientists are concerned that global warming could cause more permafrost melt, which could release methane, a greenhouse gas -- and possibly more enormous Siberian sinkholes.

PHOTOS: Earth Shots: Must-See Planet Pics