Global climate catastrophe could be nearer than we think. The Greenland ice sheet could begin a process of irreversible melting.
Just two years after California celebrated the end of its last devastating drought, the state is facing another one.
Storms devastate. Climate change makes them more devastating. Now we know how much the human cost of climate change really is.
We don't have to dive deep into economic theory or the future of technology to glimpse some potential benefits of a slimmer, grayer population.
A persuasive case can be made that globally the size of the human population is already too large and should be reduced.
As Sir David Attenborough tells us, the number of us has increased at least 3 times in his lifetime from 2 billion to almost 8.
The Vatican successfully blocks consideration of the reality that population growth is the most serious threat to the security of all nations.
There is a need for international cooperation to address population growth and consumption as driving factors of environmental destruction.
Arctic warming has far-reaching consequences that are important not only to local communities and ecosystems but to the fate of life on planet Earth.
A hotter world will mean more deserts and falling harvests − bad news for food producers and for all of us.