Melting snow and new snowfall in the midwest states of Iowa, Michigan and Indiana have driven rivers over their banks and have cut off electricity to thousands of customers.
They say the melting ice would produce flowing rivers of mud and rock. People who live in the southern part of Seattle and in the city of Tacoma, Washington would be in danger.
Some warming is certain, but the degree will be determined by cycles involving melting ice, the oceans, water vapour, clouds and changes to vegetation and plants.
At certain times, apparently, more icebergs from the Arctic Ocean in the far north were traveling south well into the North Atlantic before melting and shedding their sediment.
The butter-like material only melts when it hits the respiratory tract, leaving the virus free to infect cells - a process scientists say is like an M&M melting in the mouth.
She cast one more lingering, half-fainting glance at the prince, and then threw herself from the ship into the sea, and thought her body was dissolving into foam.
Rising temperatures make carbon dioxide leak from the oceans for two main reasons. First, melting sea ice increases the rate that the ocean mixes, which dredges up CO2-rich deep ocean waters.