Lisa Hymas

Lisa Hymas is senior editor at Grist. She tweets sometimes.

Egypt has a population crisis as well as a democracy crisis

Hosni Mubarak is a dictator who has to go — that’s obviously the animating force behind the protests in Egypt. And more power to the protesters! But Egypt’s problems run much deeper than its autocratic regime, and one of its …

Is Jon Huntsman the greenest GOP presidential hopeful? [UPDATED]

Jon Huntsman: Will he keep telling it straight on climate change?Photo: World Economic Forum [See updates at the bottom.] Former Utah Gov. Jon Huntsman is looking like the most climate-cognizant contender for the Republican presidential nomination. In fact, he downright …

If you're under 25, you should be pissed about climate change

"Generation Hot" is the 2 billion young people who will be stuck dealing with global warming for their entire lives, writes Mark Hertsgaard in his book "Hot."

Where the GOP presidential contenders stand on climate [UPDATED]

All of the leading hopefuls for the Republican presidential nomination vociferously oppose cap-and-trade systems. On climate science, there's more variety, ranging from loud denial to quiet acquiescence.

8 things you can do about population

Things anyone can do to lessen population pressure: improve sex ed in local schools, support abortion rights, & don't push others to have kids.

I talk population and 7 billion on Green Patriot Radio

This week I got the chance to talk about my recent post "2011: The year we’ll hit 7 billion" on Green Patriot Radio with host David Steinman.

Teens say: Please give us decent sex ed! [VIDEO]

Why is the teen birthrate in the U.S. so high? Sex ed in many schools sucks. Some teens got so fed up that they made a film about the need for real sex education.

2011: The year we’ll hit 7 billion

Sometime in the latter half of this year, the world population will hit 7 billion people. Already? Didn't we just hit 6 billion? Yep, a mere dozen years ago.

2010: The year childfree went mainstream (thanks, Oprah!)

Childlessness is nothing new — for as long as we’ve had parents, we’ve had people who are not parents. Across centuries and cultures, at least 10 percent of women never have children, writes Elizabeth Gilbert. But it is relatively new …