China's research vessel Xuelong 2, which is part of China's 16th Arctic Ocean Expedition, recently hosted two researchers from Russia's Arctic and Antarctic Research Institute on board for a joint sea ice survey. The mission took place on September 5 as part of a growing cooperation between Beijing and Moscow in the polar region, amidst rising tensions with Washington over climate change and new sea routes opening up due to warming temperatures. During the trip, the Russian researchers visually observed and recorded data on sea ice conditions, including its concentration, thickness, type, snow cover, atmospheric factors, and animal sightings. This collaboration is significant as it allows both countries to learn from each other's expertise in sea ice observation.