Stories by Ben Geman

The huge, untapped potential of energy efficiency

A power plant producing lots of smoke in front of a beautiful, red sunset
Photo: Sean Gallup/Getty Images

A much larger investment in deployment of existing energy efficiency technologies and stronger policy measures would enable major progress toward meeting the goals of the Paris climate deal, the International Energy Agency said in a new report.

Why it matters: Nothing of the sort is happening right now, and in fact progress in energy efficiency is slowing, IEA warned.

Tesla unveils less expensive Model 3 option

A sign advertisement for the Tesla Model 3 sedan.
A sign for the Model 3 sedan in August. Photo: Saul Loeb/AFP/Getty Images

Tesla announced Thursday night that it's now selling a somewhat less costly, $45,000 version of its Model 3 sedan that has a 260-mile range.

Why it matters: The mass-market Model 3 is critical to the Silicon Valley automakers' future and, more broadly, pushing electric vehicles into the mainstream.

Carbon tax lobbying starts modestly

A factory releases CO2 emissions
An energy plant releases CO2 emissions. Photo: Florian Gaertner / Photothek via Getty Images

A recently formed group that's using veteran Washington, D.C. insiders to push for a carbon tax spent $150,000 on lobbying in the third quarter, a disclosure filing shows.

Why it matters: The amount reported on March 16 by the heavyweight firm Squire Patton Boggs on behalf of Americans for Carbon Dividends is, needless to say, quite modest by beltway standards.