Green Car Congress

APRIL 29, 2014

A study by a pair of researchers at Northwestern University found that when fuel prices drove residents of São Paulo, Brazil, to switch from ethanol to gasoline in their flexible-fuel vehicles, local ozone levels dropped 20%. At the same time, nitric oxide and carbon monoxide concentrations tended to go up.

Ozone 316

Ozone Gasoline Pollution Gasoline-Electric 316

Green Car Congress

JULY 17, 2017

Geiger and Alberto Salvo, an associate professor of economics at the National University of Singapore, led the study—their second with São Paulo big data. At the same time, nitric oxide and carbon monoxide concentrations tended to go up. At the same time, nitric oxide and carbon monoxide concentrations tended to go up.

Gasoline 150

Gasoline Singapore Brazil Ozone 150

Green Car Congress

JULY 1, 2019

airline (San Francisco to Santa Rosa); the longest flight within the continental United States (Seattle to Miami); and the longest flight in the world (New York to Singapore). Michael Sivak is the managing director of Sivak Applied Research and the former director of Sustainable Worldwide Transportation at the University of Michigan.

Emissions 419

Emissions Los Angeles Gas San Francisco 419