1. Is global warming really happening?
• Are humans inducing the global warming trend?
• Are we at the tipping point or are we past the point of no return?
• How can we curb or fix the problem?
• Is geo-engineering the short-term solution?
• What are the consequences of global warming?
2. How much of the sea level will rise if all the ice in Greenland and Antarctica melts?
• How much of ices are there in Greenland and Antarctica?
• What would cause the dramatic melting of the ice?
• What are the consequences of sea level rising?
• If it does happen, what can we do about it?
3. What would happen if the Yellowstone National Park erupted again?
• What were the sizes of the last three eruptions and its consequences?
• How much magma is estimated below Yellowstone?
• How imminent is an eruption of the Yellowstone?
• Is the volcano still active?
• What are the consequences of the eruption?
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