In recent years, the impact of global warming has become increasingly significant, touching many aspects of the earth's ecosystem. Corals bleach and die, Arctic permafrost melts, Antarctic sea ice melts... These changes often evolve gradually and are difficult to attract enough attention.But there are signs that the earth's ecosystem is moving towards a critical point. If effective measures are not taken in a timely manner, there will be catastrophic impacts, and the damage to the earth's ecosys