Excessive population growth presents an immediate environmental danger greater than climate change.

On a more positive note, the report also notes that population growth with stabilize sooner than expected, at about 8 billion people by 2042.

How to slow it? Access to voluntary family planning for all women. It more than pays for itself, reducing unwanted pregnancies, abortions, unplanned births... And helps reduce humanity's environmental impact.

Matt Ridley might be right about the world not ending on December 21 this year. But the rest of the article is delusional.

And there are plenty of humans who would agree.

Graphic designer Jack Hagley's new infographic shows the world's population as 100 people.

The most recent U.N. demographic projections show world population growing to 9.3 billion by 2050, an addition of 2.3 billion people.

The incomparable Swedish medical doctor and statistician Hans Rosling tackles a very perverse and tenacious myth about overpopulation.

This large format photo book features hundreds of stunning images highlighting the effects that our global population of 7 billion (and growing) has on the Earth.

Says the United Nations Department of Economic and Social Affairs.

Population growth is in fact slowing down but everyone is using more of everything.

If the latest projections prove to be accurate, we need to plan for about a 10% increase in the needed supply of food, drinking water, and energy, and in carbon dioxide emissions by 2050.

Annual growth will soon be negative everywhere except Africa.

Move over, regular solar panels.

Buying products from solar farms is just one more way to support clean energy.

Now that's progress...

Combining computer-aided parametric design and the design principles of tensegrity (tensional integrity), this experimental pavilion tests the boundaries of building a stronger structure with less material.

Researchers gathered data over two years by following 70 different dogs, from 37 different breeds, as they... defecated and urinated.

The gaze between human and dog can share physiological properties similar to that of mother and infant, a new study finds.

The mapping technology will eventually be used to get precise solar power potential information for any location around the world.

A new cheap, lightweight sponge-like gel can quickly and efficiently disinfect drinking water for disaster victims.

One solution for purifying water in remote off-grid areas comes in the form of a wagon, complete with solar panel and water purification system.

As you can see in the satellite photos above, California is experiencing a massive drought over most of the state. The most visible aspect from space is the snow cover (or lack thereof) over the Sierra Nevada mountain range

It's time we made water bottles part of our every day carry (EDC) kit. This handy little bottle squishes down small enough to go everywhere you do.

Burning fossil fuels puts out a lot more than just CO2.

A 1.5-degrees-Celsius warmer world would bring bigger gusts of wind more regularly.

Lack of rain has reduced potato crop yields to a third of what they usually are.

A new study suggests we look to the past for guidance on how to cope going forward.

It is recommended in the UK to reduce obesity. I recommend it to reduce obnoxious smells and garbage.

A microbiologist and an Anglo Saxon scholar decided to test a recipe from an Old English medical compendium called Bald's Leechbook, what they found surprised everyone.

In which we tackle one of life's more pressing queries.

This is beyond climate denial, it's science denial

The U.N. just came up with some climate change solutions, and none of them are "expect techy solutions to pull us out."

The monthly vegetarian gathering will also host policy makers to discuss various aspects of climate change.

The Obama administration loves its czars almost as much as the media loves using the title. So here goes: The U.S. Asian Carp Czar, also known as John Goss, says he has a multi-pronged strategy to help keep Asian carp from

The autonomous robot allows scientists to more safely study polar enviroments and also collects valuable information on ice conditions for climate research.

The robots have gathered new information that will help scientists determine how fast the ice is melting.

Even a species that has benefited from temperature increases in the past may be hurt by excessive warming.

Lessons from Amundsen: travel fast and light with a small footprint.

Along with her large-scale drawings, artist Zaria Forman has recorded the eerie song of a warming planet.

Too much DIY, not enough realism. Let's just do our best.

I tasked myself with buying no plastic bottles for the year; here's how it's going so far.

Templar Marine introduces a Torqeedo powered dayboat that is a thing of beauty.

In two words: It's not.

Eating seaweed is healthy, but how is it harvested? For one Maine seaweed harvester, the job is a meditation on life.

Though only powering 75-100 homes at launch, the TidGen Cobscook Bay project, in Eastport, Maine, is slated to expand to ten times its initial size.

The iconic English office pod can be used for all kinds of things.

GO Logic have always designed beautiful homes. This was the next Go Logical step.

With fewer than 30 vaquitas left in the wild, the 'panda of the sea' is the most endangered marine mammal in the world. Now a crazy plan might just save them.

Filters on buses and smog-eating towers are not the answer.