Scientists
hope that models of how the earth will reply to a growth in carbon dioxide
could be helped by the geological information within this
10,000-year-timeframe. Models can be used to explain more about how our weather
is changing, and how the planet is going to response to those changes by
climate scientists; in the same way, models is used to make predictions about
the weather by weather forecasters.(Cruddas, par.3)
A
significant step is knowledge how the earth responded to higher CO2 levels in
the past. During its history, the natural has been changed by Earth’s
temperature and the quantity of carbon dioxide in the air. According to Dr
James Riding at the British Geological Survey: “Changes in the levels of CO2
are caused by several unrelated processes,” and Volcanoes, plants and animals,
destabilisation of the oceans, methane in the sea floor, these are all natural
mechanisms for altering CO2.” In contrast, these natural causes alone wouldn’t
have created such an increase in the time since the industrial revolution. As said
by Professor Bette Otto-Bliesner, a senior scientist at the National Center for
Atmospheric Research in Boulder, Colorado: “We know we cannot explain this
increase,” and “There has to be a human influence.”(Cruddas, par.4)
