Methane is a major anthropogenic greenhouse gas, second only to carbon dioxide (CO2) in its impact on climate change. Methane (CH4) has a high global warming potential that is 25 times as large as the one of CO2 on a 100 year time horizon according to the latest IPCC report. Thus, CH4...

Although gasoline taxes are widely used (nearly) efficient CO2 emission controls, additional fuel-efficiency regulation is applied e.g. in the USA and in Europe. In a simple analytical model, we specify the welfare implications of (i) gasoline taxes, (ii) of 'gas-guzzler taxes' (iii) of...

Ground level ozone remains a serious problem in the United States. Because ozone non-attainment is a summer problem, episodic rather than continuous controls of ozone precursors are possible. We evaluate the costs and effectiveness of an episodic scheme that requires people to buy permits in...

As an important step towards building a 'harmonious society' through 'scientific development', China has incorporated for the first time in its five-year economic plan an energy input indicator as a constraint. While it achieved a quadrupling of its GDP while cutting its energy intensity by...

China's unilateral pledge to cut its carbon intensity by 40-45 percent by 2020 relative to its 2005 levels raises both the stringency issue, and given that China's pledge is in the form of carbon intensity, reliability issues concerning China's statistics on energy and GDP. Moreover, as long as...

Just prior to the Copenhagen climate summit, China pledged to cut its carbon intensity by 40-45% by 2020 relative to its 2005 levels to help to reach an international climate change agreement at Copenhagen or beyond. This raises the issue of whether such a pledge is ambitious or just represents...

Governments monitor air quality for regulatory purposes and, more recently, to provide information so individuals can act to lower their exposure to air pollution. Recent developments in low-cost technologies have also led to private adoption of air-quality monitors that produce publicly...

This paper uses a global integrated assessment model to assess how developing Asia, the world's fastest-growing source of carbon emissions, could transition to low-carbon growth. It finds that national net-zero pledges do not have a high chance of keeping peak warming below 2êC. Under an...

Using data on 10,769 firms across 22 emerging markets, we show that both credit constraints and weak green management hold back corporate investment in green technologies embodied in new machinery, equipment and vehicles. In contrast, investment in measures to explicitly reduce emissions and...

We attempt to record the imprint of air pollution on economic growth and vice versa, the tendency of economic growth on air pollution. The variables examined in our study are the Particulate Matter Lower than 2.5 micro, GDP per capita, GDP per working hour, Unemployment, Part of the budget for...