An aerial view shows a sinkhole 3.5 km (2 miles) to the east of Solikamsk-2 mine in Perm region, November 20, 2014. Shares in Russia's Uralkali, the world's top potash producer, fell sharply for a second day on Wednesday after a mine accident that could reduce global supplies and push up prices of the crop nutrient worldwide. Uralkali shares have fallen 28 percent since Tuesday when it suspended work at its Solikamsk-2 mine, which accounts for a fifth of the company's output and 3.5 percent of global capacity, following an inflow of water. A sinkhole, stretching 30 by 40 metres (yards), found at an abandoned mine 3.5 km (2 miles) to the east, increased concern about the future of the mine because an inflow of water and the resulting sinkhole in 2006 forced another Uralkali operation to shut permanently. (Photo by Reuters/Press service of Uralkali company)

A novice Bhutanese monk sleeps after hours of prayer waiting for class to be over at the Dechen Phodrang monastery October 18, 2011 in Thimphu, Bhutan. The monks average about 10 hours of study a day waking up at 5:00am. (Photo by Paula Bronstein/Getty Images)

A protestor makes a selfie in front of a burning car during a national trade union demonstration in Brussels, Thursday November 6, 2014. Tens of thousands of demonstrators are converging on the Belgian capital to protest government policies that will extend the pension age, contain wages and cut into public services. (Photo by Geert Vanden Wijngaert/AP Photo)

A Shi'ite worshiper bleeds after cutting his scalp in a ritual display of mourning during an Ashura commemoration ceremony outside Kadhimiya shrine on December 6, 2011 in Baghdad, Iraq. Ashura marks the death of Prophet Muhammad's grandson the revered Imam Hussein in Karbala, Iraq in 680 AD. Shi'ite festivals were prohibited during the time of Sunni dictator Saddam Hussein's rule. (Photo by Mario Tama/Getty Images)

An armed youth loyal to the Houthi movement takes part in a protest against the Saudi-backed exiled government deciding to cut off the Yemeni central bank from the outside world, in the capital Sanaa, Yemen August 25, 2016. (Photo by Mohamed al-Sayaghi/Reuters)

Performers are seen as a 90-year old spruce tree cut down in the woods of the Shchyolkovsky District in Moscow Region, Russia on December 16, 2021 is sent to Moscow. The almost 28-metre high tree will be put up at the Moscow Kremlin's Sobornaya (Cathedral) Square this New Year and Christmas. (Photo by Vasily Fedosenko/TASS)

A fan of K-pop idol boy band BTS poses for photographs with cut-out of BTS at a pop-up store selling BTS goods in Seoul, South Korea, December 24, 2019. (Photo by Kim Hong-Ji/Reuters)

Nancy Ponce of Donna gets her hair done in the tag team creativity cut during the 2nd Annual El Grito Barber Derby competition at club Famoso Fuego Sunday, September 18, 2022 in McAllen. (Photo by Delcia Lopez/The Monitor via AP Photo)