As concerns grow over the cost and safety of our food, people are increasingly looking for more reliable, local sources to feed themselves.  But as much as I love gardening and encourage others to get their hands dirty, I realize that sourcing all of your food from your backyard is not realistic for most people, especially for us city dwellers.  While community and rooftop gardens are sprouting up all over, people are starting to look up for alternatives with what is known as vertical farming, which Nicole wrote about earlier this year. Skyscraper farms?  Amazing.  And building plans are in the works everywhere from New York to Dubai, and San Francisco to Shanghai.  Columbia University professor Dickson Despommier envisions:

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Many people in the Middle East and North Africa are finding themselves in the unenviable predicament of having to choose between feeding an ever expanding population and preserving an ever dwindling water supply. The population of the region as quadrupled since 1950, and is expected to reach 600 million in the next 40 years. Previously, it has been far more practical to import food rather than produce it given the high cost of food production in the dry, desert climate. But now with 90% mark-ups of some food staples, many countries are rethinking their strategy.

“The countries of the region are caught between the hammer of rising food prices and the anvil of steadily declining water availability per capita,” Alan R. Richards, a professor of economics and environmental studies at the University of California, Santa Cruz, said via e-mail. “There is no simple solution.”

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The TakePart Top 10 Weekly Roundup is a compilation of the week’s most notable stories from our entertainment-meets-social-action blogging network. Check out some of our most popular stories of the week, as well as a few TakePart blogger favorites!

Nicole Hughes:

U.S. Media Ignores Link Between Midwest Floods and Global Warming

Top 10 Houseplants for Removing Indoor Air Pollution

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Andy Kondrat:

Dubai to Build Rotating Positive Energy Tower

Bioethicist Peter Singer Tackles World Food Shortage

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Jon Popham:

Americacorps Workers Assist Flood Ravaged Town

Australians “Out-Fat” Americans

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Giulia Rozzi:

Progressive Book Club

Oprah Recommends “A New Earth”

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Gina Telaroli:

Human Rights Watch 2008 Film Festival Update

SilverDocs 2008 Update

Peter Singer, possibly the world’s most renowned bioethicist (I mean, how many others can you think of?), found himself on NPR’s Marketplace today to discuss this food crisis we’re in the midst of. Dr. Singer starts with a very simple question: “Why are we in the midst of a food crisis when world production of food per person has actually grown steadily since the 1960s?”

There are a few reasons according to Dr. Singer, not least of which is our new forays into ethanol production, which takes 100 million tons of corn off our tables. But it’s the meat people eat that’s really doing it. Dr. Singer breaks it down old skool:

But most corn isn’t eaten by humans; it’s eaten by animals and that’s the biggest part of the problem. According to the United Nations Food and Agriculture Organization, 756 million tons of grain plus most of the world’s soybean crop are fed to animals and that amount has increased sharply in recent years as Asian nations have become more prosperous and their populations have started eating more meat.

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We are in the midst of a global crisis. It’s the first of its kind to occur since World War II and from Haiti to Liberia to California there are over 100 million people being threatened. But it isn’t oil that has put us into this state - in fact, it’s much simpler. We are in dire need of food.At TakePart.com, we would like to be at the forefront of the Global Food Crisis, making sure that you stay informed on the most current news stories. That said, today marks the first day of our Global Food Crisis series, which serves to keep you involved, active, and a part of the solution.For today, May 27, check out the list of news stories below - images from Time.com, the Washington Post’s Home for the Global Food Crisis, News from CNN on what’s happening in South America, and U.S. News & World Reports’ idea for fixing the crisis.News Stories:

• Images from Time.com

• Washington Post Home for Global Food Crisis

• Crisis in South America from CNN

• 8 Ways to Fix Global Food Crisis at U.S. News & World Report

Then, by visiting the MercyCorps website or by making a donation to the Red Cross.

The TakePart Top 10 Weekly Roundup is a compilation of the week’s most notable stories from our entertainment-meets-social-action blogging network. In celebration of Earth Day 2008, we made ‘green’ the major theme on the TakePart blog this week - green documentaries and television programs, Earth Day quotes and action activities, as well as some great film reviews. Check out some of our most popular stories of the week, as well as a few TakePart blogger favorites!

Katie Halper:

Top 10 Earth Day Videos From the Hub

Joanne Herring Invites You to “Charlie Wilson’s War” Screening Discussion - Free DVD!

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Nicole Hughes:

Top 10 Documentaries About the Environment

Top 10 Ways to Take Action On Earth Day 2008!

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Andy Kondrat:

Top 10 Quotes About the Environment

Disney Launches DisneyNature to Make Documentaries - I Freak Out

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Jon Popham:

B Corporation Takes the Guesswork Out of Going Green

Sea Level Rise Explorer

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Giulia Rozzi:

Oprah and My Mom Going Green

Green It. Mean It.

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Gina Telaroli:

Taking Part In the Blogsphere With “The Visitor” and “Standard Operating Procedure”

“The Soloist” Explores the Homeless and Mentally Ill With Grace and Music

Celebrate Earth Day 2008 with these top 10 documentaries about the environment. The films below address a variety of ecological issues including climate change, vegetarianism, crude oil, industrial development and our oceans. When you’re properly inspired to green up your eco-behaviors and help preserve Mother Nature for future generations, and check out these top 10 ways to celebrate Earth Day!

1) An Inconvenient Truth

An Inconvenient Truth offers a passionate and inspirational look at one man’s fervent crusade to halt global warming’s deadly progress in its tracks by exposing the myths and misconceptions that surround it. That man is former Vice President Al Gore, who, in the wake of defeat in the 2000 election, re-set the course of his life to focus on a last-ditch, all-out effort to help save the planet from irrevocable change. [climatecrisis.net]

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