Mountains

In this Tuesday, Nov. 26, 2019, Reindeer in a temporary corral in Rakten, outside of Jokkmokk, before being transported to winter pastures. A collaboration between reindeer herders and scientists is attempting to shed light on dramatic weather changes and develop tools to better predict weather events and their impacts. Unusual weather patterns in Sweden’s arctic region seem to be jeopardising the migrating animals’ traditional grazing grounds, as rainfall during the winter has led to thick layers of snowy ice that block access to food. (AP Photo/Malin Moberg)

In this Tuesday, Nov. 26, 2019, Reindeer in a temporary corral in Rakten, outside of Jokkmokk, before being transported to winter pastures. A collaboration between reindeer herders and scientists is attempting to shed light on dramatic weather changes and develop tools to better predict weather events and their impacts. Unusual weather patterns in Sweden’s arctic region seem to be jeopardising the migrating animals’ traditional grazing grounds, as rainfall during the winter has led to thick layers of snowy ice that block access to food. (AP Photo/Malin Moberg)

In this Dec. 7, 2019, photo provided by the North Korean government, North Korean leader Kim Jong Un, center, cuts the ribbon during a ceremonial opening of the Yangdok Hot Spring Cultural Recreation Center in South Pyongan Province, North Korea. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

In this Dec. 7, 2019, photo provided by the North Korean government, North Korean leader Kim Jong Un, center, cuts the ribbon during a ceremonial opening of the Yangdok Hot Spring Cultural Recreation Center in South Pyongan Province, North Korea. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

In this Dec. 7, 2019, photo provided by the North Korean government, North Korean leader Kim Jong Un, center, cuts the ribbon during a ceremonial opening of the Yangdok Hot Spring Cultural Recreation Center in South Pyongan Province, North Korea. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

ADD KIM'S WIFE RI SOL JU AT RIGHT - This undated photo provided on Wednesday, Dec. 4, 2019, by the North Korean government shows North Korean leader Kim Jong Un, center, with his wife Ri Sol Ju, right, riding on white horse during his visit to Mount Paektu, North Korea. North Korea says leader Kim has taken a second ride on a white horse to a sacred mountain in less than two months. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

ADD KIM'S WIFE RI SOL JU AT RIGHT - This undated photo provided on Wednesday, Dec. 4, 2019, by the North Korean government shows North Korean leader Kim Jong Un, center, with his wife Ri Sol Ju, right, riding on white horse during his visit to Mount Paektu, North Korea. North Korea says leader Kim has taken a second ride on a white horse to a sacred mountain in less than two months. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

ADD KIM'S WIFE RI SOL JU AT RIGHT - This undated photo provided on Wednesday, Dec. 4, 2019, by the North Korean government shows North Korean leader Kim Jong Un, center, with his wife Ri Sol Ju, right, riding on white horse during his visit to Mount Paektu, North Korea. North Korea says leader Kim has taken a second ride on a white horse to a sacred mountain in less than two months. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

ADD KIM'S WIFE RI SOL JU AT RIGHT - This undated photo provided on Wednesday, Dec. 4, 2019, by the North Korean government shows North Korean leader Kim Jong Un, center, with his wife Ri Sol Ju, right, riding on white horse during his visit to Mount Paektu, North Korea. North Korea says leader Kim has taken a second ride on a white horse to a sacred mountain in less than two months. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

This undated image provided by the Maxwell Museum of Anthropology at the University of New Mexico shows a sandal (Catalogue No. 2009.46.1) excavated decades ago from the Guadalupe Mountains. Researchers will be taking a new look at numerous perishable artifacts that include sandals and baskets to learn more about the people who once inhabited the region. (Maxwell Museum of Anthropology, The University of New Mexico via AP)