 The Arctic tundra is experiencing changes in vegetation productivity due to rising temperatures and decreasing sea ice coverage. These changes have been observed in satellite imagery and other data sources, such as sea level pressure and temperature measurements. The researchers found that sea ice coverage has decreased significantly in some areas, while it has remained relatively stable in others. Additionally, the researchers noted that vegetation productivity has also changed, with some areas showing increases and others showing decreases. The researchers believe that these changes are related to the effects of rising temperatures on the Arctic ecosystem. This article was authored by Igor V. Polyakov, Compton J. Tucker, Jorge Pinzon, and others.