Watch the video and answer questions 1-17:
From Earth at 2° hotter will be horrific. Now here’s what 4° will look like. | David Wallace-Wells
What does DWW say is an expectation we have that keeps us from realistically thinking about climate change?
What do scientists think best case temperature is? What does DWW and the UN think will be impossible for us to stay under without negative emissions technology?
What's negative emissions technology? (go google it)
Has it been tested at a large scale yet?
So what's his best case number and what do scientists and island nations call that number?
What would the impacts of that be on cities in South Asia and the Middle East?
Name some of those cities, how many people would be affected, and how soon that could happen.
How many climate refugees could we have by that time, according to the UN?
How many refugees were there from Syria and what were their effects upon European politics?
How do you think the US should react if there are 200 million climate refugees in 2050?
When looking at worst case scenarios, what does DWW say is the most important factor going forward?
How much warming at the end of the century if we stay on the present course, according to the UN?
What are the potential economic and societal impacts of that warming?
What's the albedo feedback loop?
What's the permafrost feedback loop? How does methane compare to CO2 in terms of heating?
How much carbon is in the permafrost and how much warming would it bring if released?
What's the cloud formation problem? How high would CO2 have to be for that to happen? How much warmer would that make Earth? How would that change where people couldn't live?
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