Where did the water for the ice come from? What is the optimal sea level for the governments to set? How do you calculate an energy output without knowing it's environment? Why do scientist, who are dependent on government funding, use words like 'suggest', 'surprised', or 'consensus'?
The truth is that none of us know what the actual dimensions of our solar system were 5,000 years ago, nor do we know the measurements in the next 1,000.
An object is never the same when nature is applied over time.