Arctic deserts and tundra are the least disturbed by humans since they usually unattractive places for to live?

This statement needs nuance. While it's true that the extreme conditions in Arctic deserts and tundra make them less hospitable to human settlements compared to other regions, they are not entirely devoid of human activity and impacts. Here are a few points to consider:

Mining and resource extraction: Arctic regions hold valuable natural resources such as minerals, oil, and gas, leading to mining and drilling operations. These activities can cause significant environmental disturbances and pollution.

Climate change impacts: Arctic regions are experiencing the effects of climate change at a more rapid pace compared to other parts of the world. The melting of permafrost, sea ice loss, and changes in plant and animal life have consequences for both the ecosystems and the livelihoods of indigenous communities.

Shipping and transportation: With reduced sea ice, there has been an increase in shipping activities and transportation through the Arctic, which can lead to pollution and potential oil spills.

Tourism: Arctic tourism has been growing in recent years, bringing visitors to experience the unique landscapes and wildlife. While tourism can generate revenue for local communities, it also poses challenges related to waste management and environmental conservation.

Scientific research: Arctic regions are important for scientific research on climate change, geology, and ecology. Research stations and activities can have localized impacts on the environment and wildlife.

Overall, while Arctic deserts and tundra may be less densely populated compared to other regions, they are not entirely free from human disturbances. It is important to manage human activities in these fragile ecosystems to minimize their impacts on the environment and the well-being of local communities and wildlife.