Green Car Congress

FEBRUARY 6, 2018

Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.

Ozone 255

Ozone Global North America Colorado 255

Cars That Think

AUGUST 16, 2021

The main obstacles will be regulatory and, especially, environmental: Supersonic airliners could be hugely more polluting than their subsonic counterparts. That continued until 2003, when British Airways and Air France retired their fleets, together amounting to just 12 aircraft.

Oklahoma City 109

Oklahoma City Ozone Oklahoma Fuel 109

Cars That Think

JULY 20, 2021

Many towns and cities founded in France during the Roman Empire remain right where the Romans left them, even though the Romans made little use of navigable rivers and the coastal trade north of the Mediterranean that became important in later centuries. Examples include the use of Facebook's data around the 2016 U.S. military bases.

Chad 98

Chad London Iceland Ozone 98