www.earthpolicy.org/index.php?/press_room/C68/pb4_ch7_datarelease
In Chapter 7 of the recently released Plan B 4.0: Mobilizing to Save Civilization, Lester Brown lays out the Plan B goals for eradicating poverty and stabilizing population. Behind the scenes are a number of datasets and graphs that delve deeper into the trends discussed in the chapter. Here are some highlights from the Chapter 7 data:
World population has grown steadily over the past half century, increasing from 2.5 billion in 1950 to a projected 6.8 billion in 2009. The United Nations medium fertility level scenario projects that world population will grow to 9.2 billion in 2050. Their high projection takes the world to 10.5 billion in 2050. Under their low projection, which assumes rapid reductions in fertility rates, population peaks at just over 8 billion in 2042, then begins to decline.
Though life expectancies around the world have increased in the past half century, large discrepancies remain among different regions. Overall, world life expectancy increased from an average of 47 years in the mid-twentieth century to 68 years today. While life expectancy in 1950 hovered around 40 years in both Sub-Saharan Africa and Asia, it has since increased far more rapidly in Asia, reaching 69 years, compared to 51 years in Sub-Saharan Africa. On a regional basis, the United States and Canada top the world with an average life expectancy of 79 years.

By Rhishja Larson •
September 10, 2009

The recent death of a male lion at the Dhaka Zoo brings the total number of animal deaths at the facility this year to 20.
Negligence, inadequate care, inexperience, and poor living conditions the Dhaka Zoo are to blame for the reported deaths of 20 animals so far this year. Three days ago, a young giraffe died and yesterday, a lion.
By John Chappell •
July 27, 2009

How do you save dying species of agriculturally valuable plants and animals? The answer may be as simple as what’s on your dinner plate.
A recent article outlined the “eat ‘em to save ‘em” method of biodiversity protection. Simply put, rare varieties of plants and animals can be saved if consumers demand them. Asking your grocer, chef, or farmers market vendor about heirloom and endangered varieties is a great way to demonstrate that the demand exists for these diverse crops.
By Derek Markham •
May 29, 2009
People living in slums the world over are dependent on pit latrines as their only recourse for a bathroom. And when those pits get full, they’re usually emptied by hand, with a bucket, and the feces is often deposited in the nearest body of water, spreading disease and contamination even further. But a machine made partly from recycled car parts, the Vacutug, may help stop that process.
By Tina Casey •
March 11, 2009
First there was the Life Straw. Then there was the Aquaduct Tricycle. Now ordinary sand could provide an answer to one of the thorniest problems of the future: how to purify drinking water for the many millions of people who don’t have access to a clean, disease-free source — and no means to pay for conventional water treatment.
By Amy Bell •
February 18, 2009
Most people are aware of at least a few of the problems associated with factory farming.
Anyone who has ever had the unfortunate experience of even being near one will tell you the smell alone is enough to make you instantly nauseated.
Aside from that, what are some of the other hazards of raising animals this way?
Here is a interesting list I’ve compiled of various pieces of information about this vile practice, and the impact it has on us and the environment:
By Andrew Williams •
January 12, 2009

A Swedish inventor has unveiled a solar-powered water purifier that could provide billions of the world’s poorest people with access to clean and disease-free drinking water [video].
The device, called the Solvatten, (Swedish for ’sun water’), looks much the same as a standard jerrycan and can be filled with up to ten liters of water, opened out, and left in the sun. A simple indicator shows either a red or green face to let users know when the water is safe to drink (typically after 3-4 hours), thus avoiding the risk of contracting water-borne diseases.