Climate change cards

In the uk many rocks can show us how sediment would have deposited, some sand and gravels are deposited by glaciers as they melt suggesting there could have once been frozen land in its place. The landscape gives clues to the climate of the past, as glaciers moved down what we call valleys in the uk, they usually carved out a semicircular shape, similar to u-shaped valleys in the uk and Norway. Fossils such as in Yorkshire give evidence for limestone meaning millions of years ago it would ahve been an ocean sea bed, worm and fall of life.

Eruptions need to be big and explosive to do any kind of impact on the worlds atnsophere and climate. If this was to happen the ash built up from the explosion occurring would be spread far a nd wide across he planet and starch fro kilometres rapping itself in the atmosphere. This woudl in turn cause many drops int meperature globally casing ice and frozen wastelands to spread rapidly and cover many more areas in the world. The ash would plunge the world into darkness for many months. Mount piñatubo released 17 million tonnes of ash made up fo sulphur dioxide cooling the earth significantly.

The second theory is that the sun spots not the suns surface cause huge bursts of energy to travel across space and reach our atmosphere were it penetrates causing hot periods to occur. They are dark in colouration and tell us that the sun is active. The little ice age was a cooler period in time due to the eruption and the medical period when it was hot for significant amounts of time due to the sun sport theory occurring.

The third and final theory is the orbital theory which happens on very long scales of time nearly every 1000 years, the orbital shape around the sun changes and become oblong and stretched causing periods of time to be close to the sun and far away from the sun.

Humans contribute by using natural gases such as coal, oil and gas called fossil fuels to power factories and transport across the world. These are then re emitted from the earths atmosphere back down to earth, heating the inside of the atmosphere contributing to the warming of the atmosphere and in turn rising sea levels.

Lastly deopfrestation causes the co2 to accumulate int he atmosphere as the trees and pants across the world cannot take up this to produce oxygen for us, this lack of oxygen and accumulating co2 is causing a rapid succession of heat to occur across the planet.

For the people on earth climate change will be significant to us. As temperatures rise crops fails nd dry up due to droughts, oceans rise and seas threatening to flood cities and villages on the coasts around the world.

Reducing climate change by planting trees such as the Great green wall in africa will help in bring back levels of temperatures and cooling the early once again. Furthemrore the trees int he areas such as streets tempt o take up the co2 and nritgroen emitted from cars and cleaning the air around them. By not eating these chemicals the ears atmosphere will not be as polluted and toxic.