World Population Expected to Reach 10.3 Billion in 2080s

A new report says the world's population is expected to reach 10.3 billion in the 2080s. The United Nations document suggests that after reaching the peak, the population will then decrease to about 10.2 billion by the end of the century.

Humanity could be on the verge of massive population correction

Population ecologist William Rees suggests that planet Earth could be headed for a major population correction—perhaps before the end of this century. Such a correction, he notes, would be a drastic reduction in human population. 

Can we feed 11 billion people while preventing the spread of infectious disease?

Within the next 80 years, the world's population is expected to top 11 billion. A new article describes how the increase in population and the need to feed everyone will give rise to human infectious disease.

Grand challenges we'll face by 2050

Editing genes, ageing populations, rising sea levels… the world is moving faster than ever. What will those trends mean for our society over the next 30 years?

Earth's population just hit 7.5 billion people

A global population of 7.5 billion people has far-reaching repercussions – including increased greenhouse gas emissions, strained food supplies, and increased total consumption.

Biggest Threats to the Environment - Why We Still Need Earth Day

April 22 is Earth Day, and while it’s a time to celebrate our planet, it’s also an opportunity to take a look at the serious environmental issues we’re facing.