Via this comes the Sierra Club article "Life in Abundance/Ethiopia, the cradle of humanity, faces up to family planning" (sierraclub.org/sierra/200807/ethiopia.asp) which promotes Ethiopians having fewer children and contains this sidebar:

In the past decade, U.S. funding for international family-planning programs like those in Ethiopia has declined by almost 40 percent. During those years, 275 million more women in the developing world came of childbearing age... The Sierra Club's Global Population and the Environment program is working to get the United States to invest $1 billion in 2009 in international family planning.

And, right at the top of sierraclub.org/international is this:

What does population have to do with global warming? Plenty! Population growth, global warming and consumption patterns are inextricably linked in their collective global environmental impact. Did you know that during the 20th century, human population multiplied from 1.6 billion to 6.1 billion people, and that heat trapping carbon-dioxide (CO2) emissions grew twelve fold?

Oddly enough, the Sierra Club's goals are a bit different when it comes to domestic U.S. policy. Here in our country, they support massive immigration of any kind through various means, such as being involved in a smear campaign against those running for their board who wanted the Club to oppose massive immigration. And, through suing the U.S. over the border fence.

Now, the last thing I think is that it has anything to do with the funder who gave their Foundation $100 million and who told SC Executive Director Carl Pope that:

"if they ever came out anti-immigration, they would never get a dollar from me."

I'm absolutely positive that the SC's confused policies have absolutely nothing to do with the $100 million they got from the gentleman who said that.