Call for emergency action to limit global temperature increases, restore biodiversity and protect health: Wealthy nations must do much more, much faster.

The authors offer observation on efforts to tackle the global environmental crisis as global temperature increases. Topics discussed include reason the promise by many countries to protect at least 30 percent of the world's land and oceans by 2030 are not enough, how wealthy nations can contribute to tackling the environmental crisis, and global threat to global public health.