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Ozone

NASA-led study identifies unprecedented depletion of stratospheric ozone layer above Arctic

Green Car Congress

OCTOBER 2, 2011

A NASA-led study has documented an unprecedented depletion of Earth’s protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere. The same ozone-loss processes occur each winter in the Arctic.

Ozone

Ozone 2011 Aura Davis

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

Green Car Congress

JANUARY 27, 2015

The ACES results are expected to play an important role in future risk reviews of diesel engines by international and US agencies. We are already seeing a transition in America’s roads with over 30% of the trucks and buses in use today meeting these new standards and the trend is growing in Europe as well.

Exhaust

Exhaust Diesel Engine 2007

EV Driven

NASA-led study identifies unprecedented depletion of stratospheric ozone layer above Arctic

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

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