Greenhouse gases are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. This process is the main cause of this effect.The principal greenhouse gases in the Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Greenhouse gases greatly affect the temperature of the Earth; without them, Earth's surface would be on average about 33°C colder than at present.
2.-What kind of fossil fuels can you name?
Coil, oil and natural gas are fossil fuels.
3.-In what year did carbon emissions reach one billion tonnes per year?
In 1927 carbon emissions reached one bilion tonnes per year
4.-Express in a chart (time, population) the world’s population growth since 1800.
5.-Reckon when 7 billion world inhabitants will be reached
It is estimated in February 2010 that the world population will hit 7 billion
6.-According to the chart in the text that shows the increase in CO2 concentration in the atmosphere since 1960, what is the percentage growth that has been produced in each decade?
32% per year more or less has growth the concentration of CO2 in the atmosphere
7.-What was the warmest year on record?
2007 has been the warmest year on record
8.-In the Kyoto protocol, it was agreed that developed countries would reduce their emissions by an average of 5% in the period from 2008-2012. Do you think it has been meeting its target?
Not exactly. In fact, according to the chart, we can see that it has been growing and never descending
9.-Define Gross Domestic Product (GDP)
The total market value of all final goods and services produced in a country in a given year, equal to total consumer, investment and government spending, plus the value of exports, minus the value of imports.
10.-The Stern Review concludes that climate change could damage global GDP by up to 20% if left unchecked - but curbing it would cost about 1% of global GDP. Explain how this statement is justified
Is better to spend a little bit of money to prevent the disasters that will produce the climate change than later, have to spent much more to solve the problems that it has cause. The worst thing is that maybe, these problems haven't got any solution.
