Alternative fuels employed in road transport: Compressed Natural Gas (CNG), Liquefied Petroleum Gas (LPG), Methanol and Blended/ Ethanol and Electricity.

Cereals are by far the most important source of food throughout the world, either directly for human consumption or indirectly in the form of animal feed for livestock products consumed as food. With world population set to rise to nine billion by 2050, there is an urgent need to examine ways to increase cereal production.

Adaptation

This paper reviews main approaches to estimate the costs of REDD, with a focus on the opportunity costs. These can be classified into local-empirical, global-empirical and global simulation models. In local-empirical models, per-area opportunity cost estimates are derived from detailed studies (surveys) and carbon density estimates

Over the past half-century, WWF and many other groups have worked to conserve the world's most exceptional ecosystems and endangered species, promote sustainable use of natural resources, and reduce pollution and wasteful consumption