Largely seen as fringe technologies just a decade ago, clean energy resources are becoming truly mainstream in the United States. Here are 12 charts that show the state of the clean energy revolution underway in the U.S. right now.

For years, energy companies have couched the possible effects of climate change-related regulations in public reports to investors as “uncertain,” “difficult,” or “not possible” to reasonably predict. Now a probe by New York Attorney General Eric Schneiderman is raising questions as to whether the companies knew more than they were letting on.

“A zero-carbon future will cost the same or less than a carbon future.”

– Hal Harvey, chief executive of Energy Innovation, a policy and technology institute, speaking at The International New York Times Energy for Tomorrow conference in Paris.

Coal is in trouble, and that could be good news for a warming world. The representatives of nearly 200 nations who are gathered in Paris to discuss ways of limiting climate change by cutting greenhouse gas emissions will be talking a lot about coal.

Bill Gates will announce the creation of a multibillion-dollar clean energy fund on Monday at the opening of a Paris summit meeting intended to forge a global accord to cut planet-warming emissions, according to people with knowledge of the plans.

Investor-owned utilities spent more than $98 billion last year, while electricity demand was essentially flat. So why are utilities spending so much money? And who is giving them the money to spend? In addition, why is that only “regulated utilities” are spending money?

In a new wrinkle to the revelation that Exxon Mobil knew about global warming for about 40 years, New York State’s attorney general is now investigating the company and others to ascertain whether they misled investors on climate change’s causes and ramifications.

The opening of an investigation of Exxon Mobil by the New York attorney general’s office into the company’s record on climate change may well spur legal inquiries into other oil companies, according to legal and climate experts, although successful prosecutions are far from assured.

Without a single, comprehensive tool for evaluating the costs and benefits for emissions reductions, policymakers are often left to cobble together expectations for various policies from a hodgepodge of reports and studies that rarely share the same data and methodologies. Last month, San Francisco-based think tank Energy Innovation (EI) unveiled its Energy Policy Simulator, a one-stop shop for testing dozens of decarbonization strategies in the U.S. economy and evaluating their costs.

Energy Innovation, a San Francisco-based think tank, has created what may be the coolest tool for energy nerds I’ve ever seen. It’s called the Energy Policy Simulator, and it lets anyone see the impacts of their energy policy choices on a whole range of outputs, including US greenhouse gas emissions.