Every living thing on earth follows borne - grow - death cycle. According to evolution theory, the same cycle is followed by organisms during their evolution period. So, according to that, Something happens to make humans go extinct, the moral harm done will be immense. Protecting against events with even a small probability of causing that is worthwhile.
So, the 8 possible ways it could happen are mentioned below :
According to new climate change report warns us that, we may be on the way to extinction, they are claiming that the human civilization will come to an end of 2050 if action is not taken on the greenhouse gas emissions.
According to the analysis, published on May 30 by Australian think tank the Breakthrough National Centre for Climate Restoration, calls for a new approach to climate change and paints a bleak picture of the world in next 30 years if nothing can be done to control the greenhouse emissions.
As scientist mention in the reports of the central “2050 scenario,” one billion people will be forced to relocate from unlivable conditions may be a food production will become inadequate to feed the global population.
55% of the global population would be tolerate more than 20 days a year of lethal heat conditions, which is “beyond the threshold of human survivability.”
Asteroid impacts may be caused by large-scale extinction on the Earth in the past. The Chicxulub impact 66 million years ago, is widely believed that it had caused the mass extinction of the dinosaurs (an alternative theory blames volcanic eruptions, about which more in a second). Maybe a future impact could have a similar effect.
Aliens may be prone to destroy other life as they grow, just as humans have pushed species to extinction on Earth. Some scientists believe that aliens might choose to destroy humanity to protect other civilizations.
Nuclear warheads s has the ability to kill thousands of people upon impact, and their lingering effects create even more harm. One article based on model claims that the use of 4,000 nuclear weapons would release 150 teragrams of smoke, which is enough to lower global temperatures by 8 degrees for four or five years. The world’s largest nuclear arsenals are in the United States and Russia, each has about 7,000 warheads till today.
Biological weapons could be the best global catastrophes if a pathogen leads to a pandemic. Toxic chemicals may cause less effects or affect slowly, but they can still contaminate a large area if they are put into water supplies.
One disease which could kill up to 100 million people in a pandemic similar to the Spanish Flu is long overdue, according to the shock announcement.
There is a warning by Scientist that potentially catastrophic Yellowstone volcano will erupt again in the future and could destroy humanity.
The stage where computer programs grow advanced enough to teach themselves computer science, this would be the greatest stage we can achieve. But, after that, they could use that knowledge to improve themselves, causing a spiral of ever-increasing superintelligence.
Have a great day!!!