Question

1. Select a driver from the Time Spans and Climate figure 2. Write in two or three paragraphs, describe the time span over which it operates and explain why. 3. Compose your responses ina MS Word document and submit by following instructions on how to submit below. tlon Atmospheric pollution Changes in ocean dirculation nanges in extent Continental drift Changes in the acth's orbit Changes in energy from the Sum Different drivers operate bllons of years over different periods of time For example, plate tectonics influences climate over millions to billions of years. while meteorite ons of years impacts and volcanic eruptions influence climate from days to lennia decades from the Gottesmun centuries Hall of Planet Earth decades years months days billions of years millions of years millennia centuries decades years months days Meteorite impact and volcanic eruption Atmospheric pollution Changes in ocean circulation Changes in extent of sea and land ice Different drivers operate over different periods of time For example, plate tectonics influences climate over millions to billions of years. while meteorite impacts and volcanic eruptions influence climate from days to decades from the Gottesman Hall of Planet Earth Continental drift Changes in the Earth's orbit Changes in energy from the Sun

Answer 1

The topic that I want to take for the driver of climate is atmospheric pollution and this can drive climate change in period varying from days to centuries as there are some short time reasons like burning of fossil fuels which adds to the greenhouse gas and thus is responsible for climate change and some long time reasons like the feedback system associated with increased level of greenhouse gases.

The way this atmospheric pollution works for climate change is associated with normal fossil fuels and global warming. The conventional fossil fuels when burned produce a lot of green house gases which are responsible for the greenhouse effect which refers to the conditions when the earth’s atmosphere gets warmed up by the sun’s radiation becaue of the gases which radiates energy very affective (these gases are known as green house gases example: water vapours, carbon dioxide, methane etc.). The greenhouse effect is important for supporting the life and various life processes as in the absence of greenhouse effect the temperature on earth would become far less than the sustainable temperature. But enhanced greenhouse effect is responsible for the global warming of earth and this phenomenon of global warming is having many negative effects. This phenomenon of global warming Is taking place the rate with which the carbon dioxide emissions is increasing (exponentially) which is a green house gas and thus will increase the temperature of earth cannot be nullified by any natural feedback system and this increase in the temperature is causing melting of ice caps and is therefore responsible for the increase in the global water level. This can be illustrated by using the “Hockey stick curve” which shows that during the last 2,000 years, the last century shown an exponential increase in the global temperature and this trend will follow in the coming years if we don’t look about our carbon dioxide emissions which is causing an increase in global temperature by the phenomenon of global warming. This curve is attached below:

0.6 5 0.4 0.2 2 -0.2 AAAA 0.4 -1 -0.6 -2 -0.8 -4 2000 1600 1000 1200 1400 1800 Year Temperature anomaly C)