Global Nuclear Wastewater Era, What? I Am a Clone

This is an era filled with nuclear wastewater. This is an era hundreds of years after Country R discharged nuclear wastewater. Ever since Country R insisted on discharging nuclear wastewater into the ocean despite the opposition of other countries, such changes have occurred. All kinds of creatures have ushered in a new transformation. Many years later, people have developed a new system to deal with it. But coupled with global warming, the era of great floods is coming again, but this time the word nuclear will be added in front. Noah's Ark? City in the sky? Space voyage? Where is the way out for mankind?