Sea level rise
Melting of all the glaciers
Drought
Increased storm intensity
Ocean Acidity
Mass extinction
Global War
Yup melting all the glaciers will cause the oceans to rise. No alpine glaciers will cause droughts in the lands fed by rivers sourced by glaciers. Droughts in these areas will cause global food shortages and then lead to mass migration and then Global War.
Some areas will receive less rain than they are used to. These ares will suffer droughts and crop failures, which leads to mass migration and then Global War.
Some areas will receive greater rainfall than normal, but the bad news is more of that rainfall will occur in single events that cause massive flooding and erosion of soil. This will lead to crop failure, which leads to mass migration which leads to Global War.
Habitat loss due to drought and increased farming by humans will, correction, IS wiping out more and more species of life, often before we know that they exist. They will be dead and we will be alive so this does not lead to Global War. Unless you think of the oceans. Increased ocean temperatures are ruining fish habitats and reducing the number of fish species. Removal of fish species will reduce the amount of food from the sea. Causing starvation and mass migration and Global War.
Increased Carbon Dioxide in the atmosphere is stored in the water. CO2 stored in water makes carbonic acid. Acidity of oceans increase, habitat losses in oceans causes starvation, which leads to mass migration and Global War. But if the acidification of the oceans goes too far, all war will stop. Half the worlds supply of oxygen comes from acid sensitive organisms in the oceans. Death of these creatures reduces global oxygen from 21% in the air to 11%. All mammals and most recent reptiles need 14% oxygen to live, not birds and not alligator like reptiles and not fish and not insects. Humans are mammals, so all Global War stops and people all die.
If we stop using Carbon Dioxide soon the last one will not happen. All the rest will continue, because there are positive feed backs in the environment that will not be put in check for thousands of years even if we try. That is something that we are going to have to get used to.
For further clarification, mass migration of people from areas of low food to areas of high food will still occur. And people with food will not want to share, because they will not have enough food for everyone. Then people with nothing to lose will start killing people that have everything to lose. They will do it everywhere. The winners in the poor countries will then go to the wealthy countries and everyone will be at war.
Global War. WWI and WWII were called Word Wars but they weren't. WWI was a European war that added trading partners and colonies. WWII was fought in Europe and eastern Asia. There were no battles fought in the Americas, in South Asia (beyond a skirmish to two), most of Africa, and most of central Asia. No Latin American nation even participated, the same with most of Africa really. If the worst happens, the GLOBAL WAR brought on by climate change will be fought in every street across the entire globe with machetes to nuclear weapons. All for food and a place to stay.
What a downer. There is a way to stop it. Embrace Green Energy. Global Green Energy can power desalination plants and pump water to where it is needed. This would allow crop irrigation and stop the worst of the famine. Hydroponic greenhouses would add to global food reserves. And reduce Global Mass Migration. Reduce that and Global War becomes less of a threat.
But severe weather, droughts, no glaciers, sea level rise and mass extinction, is not something that we can avoid. They were futures that we could have avoided, but they will be a fact of our future no matter what now.
Embrace the green to stay alive.
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