Energy security: the role of shale technology.

gy consumption ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathrm{PED}$$\end{document} PED ) shows an increasing trend after the NAST for biomass (a), natural gas (c) and total renewable (f) resources, while the results indicate a decreasing trend for coal (b) and petroleum (d) with no significant change for nuclear electric power (d).

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mssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathrm{PED}$$\end{document} PED ) shows an increasing trend after the NAST for biomass (a), natural gas (c) and total renewable (f) resources, while the results indicate a decreasing trend for coal (b) and petroleum (d) with no significant change for nuclear electric power (d).

also in 47,180 other papers