Scorched Earth- Interstellar Quest Line

The scenario I think that is the most likely to cause the biggest threat to survival is the global warming scenario. I think that this is the most realistic scenario because humans, really ever since the late 90's, have been pumping out more and more Co2 emissions through the advancement of factories and industries. "It is clear from the extensive scientific evidence that the dominant cause of the rapid change in the climate of the past half century is human-induced increases in a number of atmospheric greenhouse gases, including carbon dioxide (CO2), chlorofluorocarbons, methane, and nitrous oxide." This quote is from the American Meteorological Society and is talking about what humans have been putting into the air by creating all of the new technologies we have today. This quote by the AMS was from 2012. It has been almost 4 years and people have still not started to try and fix anything with global warming. My second reference is from 2001. This again shows how long we have been dealing with global warming. "Climate change is real. There will always be uncertainty in understanding a system as complex as the world’s climate. However, there is now strong evidence that significant global warming is occurring. The evidence comes from direct measurements of rising surface air temperatures and subsurface ocean temperatures and from phenomena such as increases in average global sea levels, retreating glaciers, and changes to many physical and biological systems. It is likely that most of the warming in recent decades can be attributed to human activities." That reference is from 11 different science academies together. The U.S. National Academy of Science is just one of these academies.The last reference is from theEnvironmental Research Letters by J. Cook. This is from Volume 8 Number 2. ". . . global climate change together with increasing direct impacts of human activities, such as fisheries, is affecting the population dynamics of marine top predators." This volume of letters is from 2013. A solution that I think would work is if humans stopped destroying the forests of areas on the Earth where humans have been too and then start regrowing plants and cleaning up areas that humans no longer use.