Earth's
temperature rise equals four Hiroshima atomic bombs: Climate
scientist
23
June, 2013
Melbourne:
Earth has been building up temperatures at a rate equal to heat
generated by four Hiroshima nuclear bombs every second, a climate
scientist has warned.
According
to John Cook, Climate Communication Fellow from the Global Change
Institute at the University of Queensland, humans are emitting more
carbon dioxide into the atmosphere than any other time in history of
humankind.
"All
these heat-trapping greenhouse gases in our atmosphere mean our
planet has been building up heat at the rate of about four Hiroshima
bombs every second - consider that going continuously for several
decades," said Cook.
Cook
said about 90 per cent of global warming was going into the oceans,
which act like a natural thermometer along with changes in land, ice,
and animal species, AAP reported. He warned that distributions of
trees are shifting towards cooler areas of Earth such as the poles or
mountains, and animal species are responding to global warming by
mating earlier in the year.
"This
is not because animals are getting randier, it is because the seasons
themselves are shifting," Cook said.
Cook
said studies have tried to put a number on how much of global warming
is caused by humans, 'and the rough answer is, all of it'. He said
forlast 20 years, 97 per cent of scientists have been in agreement
that human activity is is behind warmer temperatures.
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