Overgrown with greening trees and underbrush.    From Wordnet, Princeton University. 

Noun : the greening of America.    From Dictionary.com. 

More than 15 years ago, Secretary of State Jim Baker spoke eloquently about what he called the greening of our foreign policy, and that's exactly why we are here today.    From Wordnik.com.  [TreeHugger] Reference

The scientists also revealed that parts of the continent were "greening" - with plants flourishing in warmer temperatures.    From Wordnik.com.  [Home | Mail Online] Reference

Still, the idea of greening our communications networks with windmills makes a lot sense.    From Wordnik.com.  [GigaOM Network] Reference

Most schools seem to approach the idea of greening through recycling or building improvements.    From Wordnik.com.  [TreeHugger] Reference

The so-called greening of our electricity production, which generates so much talk, is still 100 percent wishful thinking.    From Wordnik.com.  [Energy Bulletin -] Reference

Financial institutions have been examining the idea of greening their data centers for at least the last four or five years.    From Wordnik.com.  [BankTech - All Stories] Reference

Pretty much the opposite scenario that MY describes: urban densification and owner-residual incentives to invest in greening.    From Wordnik.com.  [Matthew Yglesias » Subsidizing Homeownership] Reference

So we perceive a "greening" of what was there before.    From Wordnik.com.  [Green Dots] Reference

The "greening" of the hotel was really an organic process.    From Wordnik.com.  [Paige Donner: Greening Hollywood: Ecopreneur Deirdre Wallace's Ambrose Hotel] Reference

It's a great time to do a little "greening" before the guests arrive.    From Wordnik.com.  [Enviroblog: Going Green Archives] Reference

Where current trends in the "greening" of Mexico will lead is anyone's guess.    From Wordnik.com.  [Drugs, Rebellion, And Mexico's Militarization] Reference

Aside from driving a Prius, Huffington is also in the process of "greening" her house.    From Wordnik.com.  [Paige Donner: Greening Hollywood: Arianna on The Green Carpet at The Millennium Awards] Reference

Can we afford the cost of "greening" so many buildings in the current economic climate?.    From Wordnik.com.  [Kathryn Wylde: NYC Can't Afford Not to "Go Green"] Reference

Please take this short survey to tell us how we should approach 'greening' the conference.    From Wordnik.com.  [Member Opinion Survey on Greening ACRL National Conference 2009] Reference

Behold the "greening" of the palaces, while the masses are left to our own primitive devices.    From Wordnik.com.  [Archive 2008-02-01] Reference

And this "greening" of cities continues to take new, exciting forms, as well as adopt old ones.    From Wordnik.com.  [Eva Maddox: Top 10 Green Roofs Across the Globe (PHOTOS)] Reference

Both the stimulus and the "greening" of our economy are in the long-term interests of every American.    From Wordnik.com.  [Matt Osborne: Oh, the Horror! NEA Under Fire for Community Organizing] Reference

Nevertheless, they are favored politically as one of the few means of "greening" the transport sector.    From Wordnik.com.  [Biofuel Benefits Go Beyond Environment] Reference

The 'greening' of products and business operations has become a central theme in virtually every industry.    From Wordnik.com.  [Literary Warrant [38]] Reference

This time, the appetite is largely pegged to rising energy costs but also to the "greening" of the appliances.    From Wordnik.com.  [Home Heat: a Rush for Alternatives] Reference

In the past few years there has been a growing grassroots movement focused on "greening" personal care products.    From Wordnik.com.  [Deirdre Imus: Kiss My "Green" Lips] Reference

Fellow mayors admire and imitate the current Mayor Daley, who is "greening" the city and even getting rid of patronage.    From Wordnik.com.  [Martin Nolan: Obama and "The Chicago Way"] Reference

Read Steve Cohen's take on the "greening" of the new Mets ballfield and a new green software-helper for Major Leage Baseball.    From Wordnik.com.  [Green Day: March 14, 2008] Reference

The article plays down the real severity of the food crisis in S Niger, 2005-6 - which went on at the same time as 'greening'.    From Wordnik.com.  [Trees and Crops Turn Back the Desert] Reference

Governor Schwarzenegger is big on entrepreneurs and businesses as a driving force behind "greening" our state on so many levels.    From Wordnik.com.  [Paige Donner: Greening Hollywood Launches EcoPreneur Salon] Reference

Wednesday to network and talk about "greening" the future.    From Wordnik.com.  [News] Reference

"This so-called greening of the Treasury involves no new money.    From Wordnik.com.  [icCheshireOnline] Reference

Jefferson City among capitals chosen for EPA 'greening' projects.    From Wordnik.com.  [STLtoday.com Top News Headlines] Reference

He said: "This so-called greening of the Treasury involves no new money.    From Wordnik.com. Reference

That's why listener Jamielee's ideas for "greening" it up are so brilliant.    From Wordnik.com.  [More Hip Than Hippie Podcast] Reference

Then the top-down "greening" began, with each move planned to meet LEED criteria.    From Wordnik.com.  [AltWeeklies.com Site Feed] Reference

John's blogs are designed to keep us up to date on the "greening" of his industry.    From Wordnik.com.  [Green Options] Reference

The SEA is the technical partner in Sri Lanka's programme of 'greening' the island's hotels.    From Wordnik.com.  [LBO-Lanka Business Online] Reference

The University of Madrid study about the "greening" of Spain points directly to their current issues.    From Wordnik.com.  [Libertarian Blog Place] Reference

In fact, there will be plenty of folks needed to educate consumers about the 'greening' of our environment.    From Wordnik.com.  [WN.com - Articles related to French holiday firm debuts 'Eco-Nature' resorts] Reference

Million in Annual Utility Costs energy audits on commercial buildings as part of a new program aimed at "greening" Lakewood.    From Wordnik.com.  [WN.com - Business News] Reference

A recent survey conducted at home shows in 15 cities indicates consumers are willing to spend money on "greening" their homes.    From Wordnik.com.  [Nashville Business News - Local Nashville News | The Nashville Business Journal] Reference

The Air Transportation Association needs to refocus its "greening" efforts and start requiring recycling from its airline members.    From Wordnik.com.  [SFGate: Top News Stories] Reference