NEW DELHI — Talk of a "global nuclear renaissance" remains just that — all talk. Notwithstanding the strong public relations campaign by the nuclear power industry and its powerful lobbying groups, nuclear energy is hardly the answer to the twin challenges of carbon mitigation and energy security that the world confronts.

Indeed, ever since the talk began in the mid-1990s, the share of nuclear power in global electricity has stagnated at 16 percent. Today, 429 power reactors worldwide generate 370 gigawatts of electricity, with just another 24 under construction, mostly in developing countries.

Yet such is the hype that Washington and New Delhi are seeking to sell a controversial nuclear deal to their skeptical publics by speciously presenting nuclear power as the answer to India's rapidly growing energy needs. Despite tax concessions and other sops, the Bush administration, however, is still trying to revive the moribund U.S. nuclear power industry, with not a single new plant currently under construction.