Although the United States has pursued rapid development of corn ethanol as a matter of national biofuel policy, relatively little is known about this policy's widespread impacts on agricultural land conversion surrounding ethanol refineries. This knowledge gap impedes policy makers' ability to identify and mitigate potentially negative environmental impacts of ethanol production.

The need for energy security and climate change mitigation have increased blending mandates worldwide; in Southern Africa, demand for biofuels could increase following South Africa’s planned blending mandates. However, land constraints limit local industry expansion, with demand likely to be met in land-abundant countries.

The EU’s 2009 renewable energy directive (RED I) was designed to increase the share of “renewable” fuels in transport. To achieve this the EU imposed a target of 10% renewable energy in transport on EU member states.

Switching to biogas as vehicle fuel can reduce greenhouse gas emissions in the transport sector between 60% and 80% compared to fossil-based fuels like gasoline and diesel.

Developing and promoting biofuels for aviation will be essential to reduce carbon emissions from commercial aviation. As a first step, some pioneering airports have already incorporated bio-jet fuel into their refuelling systems. Yet wider bio-jet adoption is constrained by high costs compared to fossil-based jet fuels.

As a flexible and competitive source of renewable energy, bioenergy can play a key role in decarbonising energy systems by responding to the needs of a wide range of demand profiles in the electricity, buildings, and transport sectors.

Develops a cost-benefit analysis to compare the impact of three separate policies to spur the additional production of ultralow-carbon fuels in California: a contract-for difference price guarantee, a per-gallon subsidy, and upfront capital grants.

Develops a cost-benefit analysis to compare the impact of three separate policies to spur the additional production of ultralow-carbon fuels in California: a contract-for difference price guarantee, a per-gallon subsidy, and upfront capital grants.

Summarizes the European Commission's (EC) formal proposal to the EU Council and the European Parliament to recast Renewable Energy Directive (RED) 2009/28/EC2, which will expire at the end of 2020.

This excerpt from the World Energy Outlook 2016 looks at the critical interplay between water and energy, with an emphasis on the stress points that arise as the linkages between these two sectors intensify.

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