PURCHASE, N.Y. -- For the first time, PepsiCo has been able to compare year-by-year water, electricity and fuel use for its entire operations.

IBM's recent campaign goes well beyond mere image -- and beyond green -- to envision a "smarter" world in which problems as wide-ranging as health care costs, energy and resource shortages, climate change, and traffic congestion can be addressed by systems thinking, technological innovation, and computing power.

In a year when the economy was all the business world could talk about, our readers dug in deep to stories about creating change, overhauling the ways business gets done, and yes, how going green can save big money.

In December 2008, GreenBiz.com Executive Editor Joel Makower talked with IBM Corporation's Rich Lechner, Vice President of Energy & Environment, and John Kennedy, Vice President of Integrated Marketing Communications, about the company's "Smarter Planet" advertising campaign.

LOS ANGELES, Calif. -- Companies and coalitions big and not-so-big have made the ranks of most notorious "green" campaigns in the year-end list from American Public Media's Greenwash Brigade.

SAN FRANCISCO, Calif. -- Environmental and agriculture groups, growers and some of the world's biggest food buyers -- Wal-Mart, Sysco and Sodexo among them -- have developed a new coalition to incorporate sustainability from the field to the table for specialty crops.

Buying greener products is just one small step toward solving the planet's environmental ills; but how do you convince companies to promote the idea of buying less?

GENEVA, -- The human race's current rate of consumption is unsustainable; a new report looks at the roles businesses and consumers must play to counteract negative trends.

No one has to tell you climate change is real, but what about the disbelievers? Think they're not important? Think again, says Kevin Moss, who writes on why it's essential not to write off the skeptics.

CHICAGO, Ill. -- McDonald's vice president for corporate responsibility went to the Virtual Energy Forum this week to offer up his company's take on energy management, green building and sustainability.

The EPA recently announced the availability of a new web tool that assists law enforcement agencies as well as the general public in finding fugitives who have violated environmental laws.

NEW YORK, N.Y. -- The election of Barack Obama, the passage of renewable energy credits by Congress and the offshore drilling debate made the list of Time magazine's Top 10 Green Stories of the year. The stories ranked first, second and third respectively.

LOUISVILLE, Ky. -- In its first corporate responsibility report, the parent of KFC, Taco Bell and Pizza Hut talks about efficiency steps in place companywide and being tested at restaurants.