Some of them are. Kind of like how some people are harmful to the environment and how others are not.
Other animals will die
Science studies it. Management is the actual controlling and changing of it.
Warm ocean waters are the energy source for hurricanes. As the seas warm with climate change hurricanes will become more frequent and stronger. In addition these supercharged hurricanes will affect the jet stream redirecting arctic air into new location creating more severe rain and snow problems in areas not directly affected by the hurricane itself.
In 1983, the various countries that claim parts of Antarctica began negotiations to set up a Mineral Development Regime, so that any mining would be carefully controlled.
Environmental groups, led by Greenpeace, launched a campaign to stop this. In 1988, the Convention on the Regulation of Antarctic Mineral Resources (CRAMRA) was adopted, and the countries concerned had one year to ratify it.
However Australia and then France announced they would not agree, so the convention lapsed. They suggested instead a Protocol on Environmental Protection to the Antarctic Treaty (the 'Madrid Protocol') and this was agreed to by all the member countries. This started in 1998 and it bans all mining activities in Antarctica until 2048. It also calls the continent a 'natural reserve devoted to peace and science'.