Those coastal impacts do not look that catastrophic at all. I remember when there were dire predictions of sea level rises of 20+ metres

. If ALL (northern and southern) ice caps and ALL glaciers melted all at the same time, the sea level would rise 72metres, but of course, there is a winter season in both regions at some stage of the year, so this dire scenario which I have seen "out there" is just that- "out there."
A fact that the climate doomsayers brand almost heretical is that many plants use MOST of their water in transpiration in the quest to extract CO2 from the atmosphere.At 1000ppm, some plants use 80% less water. Hey, we can have higher yields and grow crops in more arid conditions! Oh, what heresy.
Global warming from a greenhouse effect translates in to higher night time temperatures. Hey, less frosts to damage crops. Once again, the AGW zealots do not want this to be known.
What is the dominant greenhouse gas? WATER VAPOUR that's right, CO2 is a relatively minor contributer.
There have been high CO2 levels in the past(humans can easily tolerate 1000ppm) and the world did not go troppo. In the carbonaceous era, when the world was a warmer,wetter place, forests thrived in areas that are now deserts.The doomsayers conveniently ignore new areas that could become tropical paradises and concentrate on the areas that could become less habitable.
To me, the clincher is that science has become politicized. Scientists are supposed to look at ALL the information and not cherrypick those snippets that fit in to the result that is expected.Many key pieces of known fact are conveniently ignored to allow the modelling to come up with the desired result-scientific fraud if there ever was.Scientists who dispute the AGW line lose their funding and thus their livelihoods. Politics does not mix well with anything since politics and truth are NOT compatible. If it were not for religion / politics interactions, astronomy would be far more advanced than it is today

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A good site for climate change info is climate debate daily. Both sides are represented.