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Sustainable economic and industrial growth requires safe, sustainable resources of energy. For the future re-arrangement of a… Expand Identifying and quantifying planetary boundaries that must not be transgressed could help prevent human activities from causing… Expand The production of hydrogen from water using a catalyst and solar energy is an ideal future energy source, independent of fossil… Expand PAML, currently in version 4, is a package of programs for phylogenetic analyses of DNA and protein sequences using maximum… Expand New materials hold the key to fundamental advances in energy conversion and storage, both of which are vital in order to meet the… Expand Fast pyrolysis of biomass is one of the most recent renewable energy processes to have been introduced. It offers the advantages… Expand For the past three centuries, the effects of humans on the global environment have escalated. Because of these anthro-pogenic… Expand Global climate has fluctuated greatly during the past three million years, leading to the recent major ice ages. An inescapable… Expand Molecular fossils of biological lipids are preserved in 2700-million-year-old shales from the Pilbara Craton, Australia… Expand A new compilation of fossil data on invertebrate and vertebrate families indicates that four mass extinctions in the marine realm… Expand