# Climate Change and Policy¶

## Some science¶

What we know:

1. Accumulation of $CO_2$ and other so called greenhouse gases (GHG) reduce the earth's ability to reflect energy outwards
2. High levels of GHG concentrations in atmosphere
In [3]:
from IPython.display import Image
display(Image('http://www.forestcarbonasia.org/wp-content/uploads/2010/09/Sciencefig41.jpg'))


## Some science, continued¶

What we don't know:

1. Full carbon budget
• All GHG inputs
• Full functioning of GHG sinks (we know about 75%)
2. How GHG output from human choices will change in future

### Predicted Outcomes¶

1. Our best estimate is that warming will continue and accelerate into the next century.
2. A number of estimated side effects
• Sea Level Rise
• Migration of Tropical Disease
• Desertification
• Increase in strength and severity of storms

### Sea Level Rise in Bangladesh and India¶

In [4]:
display(Image('http://www.grida.no/images/series/vg-climate/large/33.jpg'))


### Sea Level Rise here in the US:¶

In [5]:
display(Image('http://i.kinja-img.com/gawker-media/image/upload/s--UQ4oZZnu--/c_fit,fl_progressive,q_80,w_636/fvdlozrtgd52iidtjimy.png'))

In [6]:
display(Image('http://www.easterbrook.ca/steve/wp-content/IPCC-AR5-Fig-12.5.png'))