30 dez 1991 ano - 108 heads of state, 2,400 representatives
of nongovernmental organizations, and
more than 10,000 on-site journalists
converged in Rio, along with 17,000
other individuals who would convene in
a parallel NGO forum, to address the
problem of climate change. Bush Sr. flew
in and signed the U.N Framework
Convention on Climate Change, which
committed its signatories to preventing
“dangerous anthropogenic interference
in the climate system.”