Extreme climatic calamities like high-rising seas and killer storms could be just decades and not centuries away, a new study into the potential impact of climate change warned.

The study report titled “Ice Melt, Sea Level Rise & Superstorms” warned that the global warming threshold of 2-degree Celsius or 3.6-degree Fahrenheit is too high. The 52-page report was derived from observations of ancient climate change called "paleo-climatology" and observations of current climate shifts, in addition to data from computer modeling.

Former NASA scientist James Hensen, who authored the study, cautioned that humans might have already reached in a position of potentially causing irreparable harm to their future generations.

Sharing the findings of the study, Hensen said, “So, the question arises again: Have we passed the point of no return? I think the conclusion is clear, we are in a position of potentially causing irreparable harm to our children, grandchildren, and future generations.”

The climate scientists pointed to the growing problem associated with melting of ice in Greenland and Antarctic regions. They warned that ice in the two regions is melting so quickly that it will lead to many meters of sea level rise within the next 50-150 years.

The shocking findings of the study were detailed in March 22nd edition of the influential journal Atmospheric Chemistry and Physics.