Plate boundaries

Video 1: https://drive.google.com/file/d/0B8G1W03_BajGbm5YQTNBNVZHU3M/edit?usp=sharing
Video 2: https://drive.google.com/file/d/0B8G1W03_BajGRE9WQnF6Wm8zQWs/edit?usp=sharing

In convergent plate boundaries new land is being created, subduction at convergent plate boundaries recycles old land. There are two types of crusts. One is continental crust, it is less dense, oldest rock, and it floats on the top. The other one is oceanic crust, it is more dense, youngest rock, and it subducts below continental plates. In transform boundaries crust is not produced nor destroyed at this type of boundary. It is a San Andreas fault example. There are three types of plate converges. One is oceanic crust towards continental crust, oceanic crust towards oceanic crust, and the last one is oceanic crust towards continental crust. Convergent boundaries produce the most powerful earthquakes. 

Climate change

There is a big problem in Bangladesh, the sea level is rising. This is all because of global warming. A woman lost her home all because of rising water. Bangladesh is located near India, on the Bay of Bengal. It is in the Asia content.

This is all happening to the citizens in Bangladesh. All these issues are related to global warming that are affecting the economically poor people in Bangladesh. 

All these issues are happening in Bangladesh. It is affecting all the Bangladeshis. 

The sea level is rising all because of global warming. There is excessive amount of CO2 which is causing the sea level to rise.

A lot of people that live in Bangladesh have started to leave the coastal areas that are being affected by sea level rise.

It is significant because many people are loosing a lot of their property. Many Bangladeshis are loosing their homes because of everything that is happening. 

 The solution to this is to stop global warming that way sea levels stop rising. If global warming doesn't stop the sea levels are going to keep on rising. We need to stop using cars if it's not really necessary, instead of using a car we can walk, use a scooter, bicycle, skateboard, the bus, or trolley. We also need to stop wasting electricity. If global warming doesn't stop there will not be a change.

http://news.nationalgeographic.com/news/2014/03/140331-ipcc-report-global-warming-climate-change-science/

Oceans and climate change

This report was made by Mayra Nuñez for the City Council of San Diego to provide information on the effects on climate change and what changes are going to be made. Everyone needs to know what is going to happen because of climate change.

When sea level rises it causes glaciers and icebergs to melt, causing the oceans to fill with more water. Increase in CO2 at surface causes water to become more acidic. When surface water warms it increases layering which makes it harder for water to mix. Warmer water does not hold as much gas.

Ocean temperatures and air temperatures have increased around the whole world it is most likely that it is also going to happen in San Diego. It will have impacts in animals because the range will shift and if it gets too warm in native location populations will move north. Animals like shrimp, tuna, and crabs will end up dying. 

The sea level is rising which is causing glaciers and icebergs to melt, causing the oceans to fill with more water. This will have an impact on animals and humans. Coastal and intertidal animals will be affected because it will flood their habitat. 

The dissolvement of carbon dioxide in the oceans will cause water to become more acidic. Animals will have an effect because the range will shift. There will be less suitable habitats for animals which means there will be fever animals. 

The ocean is beginning to lose oxygen. If surface water warms, warmer water does not hold as much gas as cold water. Increased layering makes it harder for water to mix. 

Due to these impacts and consequences, the City Council can begin to plan a future for San Diego. Warming, sea level rise, ocean acidification, and ocean deoxygenation is causing all these impacts and consequences. Climate change is also making a big difference.