Greenpeace energy is too risky, takes too long to build to address climate change, and claims that most countries, including the U.S., could shift to nearly 100% renewable energy while phasing out nuclear power by 2050. A French journalist under the pen name Olivier Vermont wrote in his book "La Face cachée de Greenpeace" ("The Hidden Face of Greenpeace") that he had joined Greenpeace France and had worked there as a secretary. According to Vermont he found misconduct, and continued to find it, from Amsterdam to the International office. Vermont said he found classified documents according to which half of the
Greenpeace Sciences supported the ozone "depletion hypothesis." Its suffering large losses from chlorinated and nitrogenous compounds was reported in 1985. Earlier studies had led some countries to enact bans on aerosol sprays, so that the Vienna Convention was signed in 1985 the Montreal Protocol was signed in 1987 to go in force two years later. The use of CFCs and HCFCs in refrigeration were and are among the banned technologies. A German technological institute developed an ozone-safe hydrocarbon alternative refrigerant which came to a Greenpeace campaigner's attention in around 1992. The rights to the technology were donated to Greenpeace, which maintained