Vehicles incorporating only the simplest of the engine improvements that methanol makes feasible would still contribute to an immediate lessening of urbanairpollution.
仅采用甲醇所能实现的最简单的发动机改进措施的车辆，仍将有助于立即减少城市空气污染。
2
Neira agrees in the report that "urbanairpollution continues to rise at an alarming rate" and severely affects human health.
内拉同意报告中所说的“城市空气污染继续以惊人的速度上升”并且严重影响人类健康。
3
Driving in this way increases fuel consumption by 40%, which means spending money needlessly and aggravating urbanairpollution.