What was the greatest environmental concern at the beginning of the twenty-first century?

Question

Quizplus · Accepted Answer

At the beginning of the twenty-first century, global warming was identified as the greatest environmental concern due to its potential to cause widespread and irreversible damage to the planet's ecosystems, as well as human health and well-being. The scientific consensus on the reality of human-induced climate change has only strengthened since then, and efforts to mitigate its impact remain a top priority for environmental policy-makers and activists worldwide.

What Was the Greatest Environmental Concern at the Beginning of the Twenty-First