We are blessed at GreenBiz.com with editorial contributions by some of the smartest voices in green business. They complement our in-house staff of writers and editors who produce day in and day out a high-quality stream of news stories, feature stories, podcasts, and blogs. And while we don't claim to cover every event that takes place in the green business world -- which, for readers, would be overwhelming and not all that helpful -- the team, under the leadership of managing editor Matthew Wheeland, does an outstanding job.

Over the past weeks and months, we've also been featuring the writings of others, from individual experts to leading organizations. In the latter category, you can find regular postings from the Rocky Mountain Institute, the management consultancy GreenOrder, and other organizations that are brimming with smart thinkers. We'll be adding more in the coming weeks.

This week's newsletter showcases the kind of individual thought leadership we like to bring to these pages. Harvard's Robert Pojasek, one of the pioneers and sharpest minds in sustainability management, attempts to debunk the "triple bottom line" (and just when you were figuring out what it really meant). Simran Sethi, the environmental journalist and TV host, takes on the makers of SIGG bottles, which, she maintains, had been less than forthright about problematic ingredients in their product. "Green to Gold" co-author Andrew Winston weighs in on the rise of "ridiculous stories and op-eds" on environmental topics.

And of course there's Senior Writer Marc Gunther, whose regular contributions to our sites have become among the most-read stories each week. This week, he looks at how the Environmental Defense Fund has been working behind the scenes with FedEx, Eaton and others to develop a hybrid electric truck industry, and profiles Manna, a Houston-based social enterprise led by a NASA engineer that's bringing fresh water to Rwanda.

Let me know if you'd like to write for GreenBiz.com. We especially value the views of practitioners — leaders inside companies willing to provide frontline perspective on their challenges, opportunities, and lessons learned. You can download a two-page overview for prospective writers here.

Walmart Webinar — Save the Date! In the next day or so, you'll be receiving a special invitation to a special event: a 90-minute webinar on the Sustainability Index pioneered by Walmart and others, to be held on September 24 at 1 pm Eastern. Join me as I host Rand Waddoups, Walmart's Senior Director for Sustainability; Susan Mac Cormac of the global law firm Morrison & Foerster; and Tim Mohin of the environmental management consultancy EORM, as we discuss what it takes to be ready to do business with the world's largest retailer.

This will be a hot ticket you won't want to miss. Be forewarned.

This report from the Climate Group shows that China is leading the development and commercialization of a range of low carbon technologies.

This report from Waste & Resources Action Programme (WRAP) Scotland finds that the country disposes of £1 billion (US$1.6 billion) in food every year, much of which could be avoided with better planning or storage.

In these tough economic times, sustainability leaders and CIOs are looking for projects that deliver a fast payback and lower their environmental impact. In this session, IT executives and a PC power management expert will discuss their approach to greening IT operations and delivering rapid paybacks for the investment.