Apple, Ikea and the quest for Zero Net Energy

A look at the big-name businesses trying to neutralize — not just reduce — the environmental impact of their power consumption. Read More

Data center giant Equinix sources clean power to cover California

A new contract with SunEdison represents the company's first utility-scale project. Read More

What Colgate-Palmolive, Campbell and GM share: carbon pricing

Some 1,000 global brands account for emissions internally or will do so within two years. Are names from Alcoa to Yahoo next? Read More

Apple, Microsoft, Motorola wring new revenue out of e-waste

Recycling is the last recourse for collection programs managed by reverse logistics company Li Tong Group, which prioritizes reuse of high-value components. Read More

Tracing conflict minerals proves elusive — and expensive

From Microsoft to Ford Motor Co., a range of companies are racing to meet stricter U.S. reporting requirements that take full effect next year. Read More

Solar farms could make fertile habitats for bees and butterflies

Why limit pollinator gardens to backyards? Non-profit Fertile Energy encourages utility-scale developers to plant wildflowers underneath solar panels. Read More

7 green drone companies (and counting) cleared for takeoff

The FAA has approved more than 800 tests of unmanned aerial vehicles, dozens of them for potential precision agriculture. Read More

Tesla, Stem boost business case for energy storage

High-power battery providers are wooing buyers including Adobe Systems and Extended Stay America hotels. Read More

Sprint, Staples, Kimberly-Clark: the litmus test for wheat-straw paper

Wireless giant teams with Woody Harrelson-backed startup in an industry-first test aimed at reducing dependence on wood pulp. Read More

Unilever wants you to reinvent sustainable living

A new phase of its Foundry collaboration initiative seeks input from the general public and entrepreneurs on three "grand challenges." Read More