Attn Grabber: Significant climate changes in physical and biological systems on all continents and most oceans.
Id. Prob: Is climate change natural or caused by humans?
Map Background: High carbon dioxide levels, permafrost is warming, lots of methane, temperature increase in the North Atlantic Ocean since 1970.
Thesis Stmt: Climate change is caused by humans.
Reason 1: CO2 emissions are way too high.
Evidence 1: Since 1960 CO2 has steadily been increasing in the atmosphere, which has caused the mean of temperatures to increase. Vehicles miles traveled have doubled from 1980 to 2004—vehicles give off CO2.
Reason 2: Urbanized land is also contributing to the cause of climate change.
Evidence 2: Urbanization in Alaska caused some melting of glaciers, …show more content…
However, there can be too much of this. This excess carbon dioxide that humans are adding to the atmosphere increases global temperatures. This causes climate changes that we are experiencing. Since 1960 CO2 has steadily been increasing in the atmosphere, which has caused the mean of temperatures to increase. Vehicle miles traveled have doubled from 1980 to 2004 and vehicles give off CO2.
Reason 2: Urbanized land is also contributing to the cause of climate change.
Urbanization in Alaska caused some melting of glaciers, which is causing sea levels to rise.
Where new things are being built, people will go and go in their cars, which gives off CO2. In 2005 it exceeded the natural level of 180 to 300ppm. From 1995 to 2005 it increased at 1.9ppm per year.
A small rise in sea level will affect many people. The amount of sea level rise expected as a result of climate change will increase the risk of coastal flooding for millions of people around the world. This will cause them to have to leave their homes. Global sea level has risen almost 9 inches in
James Crews the last 140 years. This has put coastal homes, beaches, roads, bridges, and wildlife at risk. Research shows that by the year 2100 sea levels are expected to rise another 1.5 to 3 feet.
Reason 3: …show more content…
Forest soils are moist but without protection from sun-blocking tree cover they quickly dry out. Trees also help perpetuate the water cycle by returning water vapor back into the atmosphere. Without treees many forest lands can quickly become deserts. Removing trees deprives the forest of portions of its canopy, which blocks the sun's rays during the day and holds in heat at night. This leads to more extreme temperature changes and can be harmful to plants and animals. Trees also play a important role in absorbing the greenhouse gases that fuel global warming. Fewer forests means larger amount of greenhouse gases enter the atmosphere. This increases the speed and severity of global
Id. Prob: Is climate change natural or caused by humans?
Map Background: High carbon dioxide levels, permafrost is warming, lots of methane, temperature increase in the North Atlantic Ocean since 1970.
Thesis Stmt: Climate change is caused by humans.
Reason 1: CO2 emissions are way too high.
Evidence 1: Since 1960 CO2 has steadily been increasing in the atmosphere, which has caused the mean of temperatures to increase. Vehicles miles traveled have doubled from 1980 to 2004—vehicles give off CO2.
Reason 2: Urbanized land is also contributing to the cause of climate change.
Evidence 2: Urbanization in Alaska caused some melting of glaciers, …show more content…
However, there can be too much of this. This excess carbon dioxide that humans are adding to the atmosphere increases global temperatures. This causes climate changes that we are experiencing. Since 1960 CO2 has steadily been increasing in the atmosphere, which has caused the mean of temperatures to increase. Vehicle miles traveled have doubled from 1980 to 2004 and vehicles give off CO2.
Reason 2: Urbanized land is also contributing to the cause of climate change.
Urbanization in Alaska caused some melting of glaciers, which is causing sea levels to rise.
Where new things are being built, people will go and go in their cars, which gives off CO2. In 2005 it exceeded the natural level of 180 to 300ppm. From 1995 to 2005 it increased at 1.9ppm per year.
A small rise in sea level will affect many people. The amount of sea level rise expected as a result of climate change will increase the risk of coastal flooding for millions of people around the world. This will cause them to have to leave their homes. Global sea level has risen almost 9 inches in
James Crews the last 140 years. This has put coastal homes, beaches, roads, bridges, and wildlife at risk. Research shows that by the year 2100 sea levels are expected to rise another 1.5 to 3 feet.
Reason 3: …show more content…
Forest soils are moist but without protection from sun-blocking tree cover they quickly dry out. Trees also help perpetuate the water cycle by returning water vapor back into the atmosphere. Without treees many forest lands can quickly become deserts. Removing trees deprives the forest of portions of its canopy, which blocks the sun's rays during the day and holds in heat at night. This leads to more extreme temperature changes and can be harmful to plants and animals. Trees also play a important role in absorbing the greenhouse gases that fuel global warming. Fewer forests means larger amount of greenhouse gases enter the atmosphere. This increases the speed and severity of global