Living

Cities

The world's first vertical forest is under construction in Milan

We've pretty much established that trees are awesome -- they make you smart, improve your home's value, filter pollution, provide shade, and produce oxygen. But even in a city that prioritizes green spaces, surface area is at a premium. How …

Living

Ask Umbra: Is banning clotheslines legal?

A reader wonders if neighborhoods can legally hang clothesline users out to dry. Umbra pins down the answer.

7 Billion: What to expect when you’re expanding—a special series

Remember when Americans used to care about population? [VIDEO]

These days, when people go out of their way to avoid mention of the P word, it's almost hard to believe that population used to be a mainstream issue.

Green Home

California will ban BPA from baby cups

California Gov. Jerry Brown signed into law a bill that bans bisphenol A from baby bottles and sippy cups sold in the state, starting in July of 2013. The Environmental Working Group had been pushing the law, which is called the Toxin-Free …

7 Billion: What to expect when you’re expanding—a special series

An indigenous take on family planning and population

A Mayan leader in Guatemala finds hope for the survival of his people in a combination of traditional and modern solutions -- including family planning.

Writing on the Wall: Street artists transform the urban landscape

Fighting climate change in the Navajo Nation

A physician-turned-street-artist takes an urban art form to a landscape where most of the walls are eons-old stone.

7 Billion: What to expect when you’re expanding—a special series

We can feed 10 billion of us, study finds — but it won’t be easy

A new study in Nature says the world can feed itself without ruining the planet -- if we make major adjustments now to how we farm and eat.

7 Billion: What to expect when you’re expanding—a special series

7 billion? It’s time to talk

People go out of their way to avoid talking about population, just as they do with sex, politics, and religion. But it’s time to get over the squeamishness.

7 Billion: What to expect when you’re expanding—a special series

Population facts and figures at your fingertips

The number of people in the world is expected to reach 7 billion by the end of October 2011. Our rate of increase continues to slow from the high point of over 2 percent in 1968. Still, this year’s 1.1 …