Green Car Congress

SEPTEMBER 25, 2021

New WHO has issued new Global Air Quality Guidelines (AQGs) that reduce levels of key air pollutants, some of which also contribute to climate change. Recommended 2021 AQG levels compared to 2005 air quality guidelines. When action is taken on these classical pollutants—particulate matter (PM), ozone (O?),

Pollution 435

Pollution Global 2005 Ozone 435

Green Car Congress

APRIL 30, 2010

The US, Canada, and Mexico have submitted a proposal to strengthen climate protection under the Montreal Protocol— the international treaty that phases out the production of a number of substances responsible for ozone depletion. Climate protection from the Montreal and Kyoto protocols. Source: IGSD. Click to enlarge.

Ozone 170

Ozone Micronesia Climate Protection Climate 170

Green Car Congress

AUGUST 18, 2015

Methane, the key constituent of natural gas, is a potent GHG with a global warming potential more than 25 times greater than that of carbon dioxide. EPA also is issuing draft Control Techniques Guidelines (CTGs) for reducing VOC emissions from existing equipment and processes in the oil and natural gas industry.

EPA 150

EPA Oil Gas Industrial 150

Green Car Congress

APRIL 3, 2009

Policies to enhance performance of biofuel production comprise: guidelines for sustainable biofuel production and tools to monitor their implementation; and product-oriented certification of biofuels. More specifically, only one third of the studies define an alternative land use reference system and calculate the carbon stock.

Conversion 150

Conversion Water Emissions 2009 150