Coal emissions in Southeast Asia are projected to triple by 2030, resulting in an increase in pollution-related deaths.
The vehicles are likely to be commonplace by 2030.
Outdoor air pollution has gone up by 8% since 2008.
From March, China’s capital will bring in new sliding scale for air quality.
Drivers in the northern city will have to leave their vehicles at home between 10am and 4pm, beginning on Monday.
The air pollution has reached the level that could seriously endanger human health in the 40-cities of northern China.
The Chinese capital issued the second red alert over the high level of air pollution.
The air pollution reading in Singapore for the past 24 hours ranged between 268-320.
Singapore ordered the emergency closure of its primary and secondary schools on Friday.