King tides are normal, true, but that is only one consequence of climate change. Charts are off because things are happening so quickly. Laboratory @ Mauna Loa running at >410 ppm CO2.  Earth is warming exponentially.  Sign and follow the Paris agreement.  This warming is a NOT a problem.  Problems have solutions.  This is a catastrophe in the making.  The cake is baked and 2 degrees C is already coming.  Methane gas (CH4) is not factored in.  We are facing the single greatest challenge to humanity only equally by the potential for a nuclear winter or large meteor strike .  Sequester coal, oil, natural gas as much as possible.  Alternative energy.... immediately.   Educate yourself and prepare your children with this knowledge.  Mass extinction is not out of the realm of possibilities. This planet is 4.5 billion years old.  Man as we know him is about 200,000 years old. Man has not always occupied this planet.  The earth has existed quite well without man.