Global environmental change

Global [CO2] has increased from c. 280 |mmol mol-1 at the start of the industrial revolution to 360 |mmol mol-1 now. It is expected to exceed 550 |mmol mol-1 by around 2050 and may even reach 700 |mmol mol-1 by 2100. Over the decade 1984-1993, [CO2] increased by 1.5 |mmol mol-1 per year on average (Schimel et al., 1996; see Chapter 2, this volume). Major concerns of studies of the impacts of GEC on wheat include identifying the effects that changes in the primary conditions of [CO2] and temperature will have on growth and yield. Less attention has been directed to the effects of secondary changes, although the magnitude of their impact on production could well be greater. Also, cultivation of wheat, because of the large areas devoted to it, may contribute to the altered global carbon balance (for example, by increasing oxidation of organic carbon or accumulation of carbon from roots). However, such impacts are not considered here.

Guide to Alternative Fuels

Guide to Alternative Fuels

Your Alternative Fuel Solution for Saving Money, Reducing Oil Dependency, and Helping the Planet. Ethanol is an alternative to gasoline. The use of ethanol has been demonstrated to reduce greenhouse emissions slightly as compared to gasoline. Through this ebook, you are going to learn what you will need to know why choosing an alternative fuel may benefit you and your future.

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