Ratings range from A (the best) to E (the worst), based on the actual on-road urban NOx and CO2 emissions using the same independent test on every vehicle. The car emissions and real-world mpg ...

Nippon Steel Corp. said it achieved the world’s first carbon dioxide (CO2) emission cut of 43 percent by using hydrogen instead of coal in a blast furnace. The breakthrough was made in a test ...

The test plant was jointly introduced by the National ... but it also needs to “reuse” CO2 emitted from factories and other exhaust sources. Essentially, the goal is to recycle captured ...