In 2024, there are 170 million pieces of junk orbiting Earth, put there by mankind. In 1956, there were none. Is this sustainable? What can be done about it?

Is the melting of the polar and Himalayan ice caps reversible, and is the rising of ocean and sea levels reversible?

With nearly 30 climate COPs behind us, are we closer to avoiding climate catastrophe? How many more climate COPs will it take to avoid it?