Sustainability's next tipping point. Interconnected technologies for energy, buildings, transportation, supply chains, food and water to enable huge opportunities and sustainability solutions.

Sure green technology is already humming along — but just wait for a future driven by urban data, natural capital and collaboration.

Cities can play a key role in advancing renewable energy — as long as it's affordable in the long-term.

Siemens, MGM Resorts and Intel are among the companies experimenting with new tech tools to decrease energy costs and improve sustainability. Here's what they've learned.

From a real-time view into deforestation to an innovative approach to delivering fresh food while minimizing waste, here are sites to watch this year.

The next year could be momentous — if the puzzle pieces in Big Data, smart cities, renewable energy and mobility come together.

With urbanization accelerating, here's how cities looking to balance out greenhouse gas emissions could focus their carbon capture efforts.