Epstein Secrets

the absence of these contributions. There is no agreement on the signifi- cance of this increase in temperature on society. The temperature of the Earth has gone through a set of sawtooth excursions over the last millennia: we are now in an exceptionally warm period in this normal climatic cycle i

sionally. The truth is probably a mixture of the two. Finding good problems—problems that la) Prof. G. M. Whitesides Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge, MA 02138.2902 (USA) Fax: (+1)617-495-9857 E-mail: [email protected]. edu (j I thank

rowing biomass and converting it to a stable form of carbon) must be explored now, if they are to be options in the future. Changing the albedo of Earth, stimulating photosynthesis in the oceans by the addition of essential trace ek- malts such as iron, developing new nuclear power cycles, a hydroge

portant. Understanding phenomena relevant to energy and the environ- ment leads to new technologies and to the ability 'Department of Chemistry and Chemical Biology, Harvard University. Cambridge, IAA 02138. USA, IMaterlals Science Division. Argonne National Laboratory. Argonne, IL 60439, USA. 'Co %horn corre

the absence of these contributions. There is no agreement on the signifi- cance of this increase in temperature on society. The temperature of the Earth has gone through a set of sawtooth excursions over the last millennia: we are now in an exceptionally warm period in this normal climatic cycle i

ofessionally. The truth is probably a mixture of the two. Finding good problems—problems that Prof. G. M. Whitesides Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge, MA 02138-2902 (USA) Pal: (+1)617.495.98S7 E-mail: gwhitesidesegmwgroup.harvard. edu (al I thank