You could read Laudato Si to find out, or here is some info I have on hand:
“Report: 100 Million Could Die From Climate Change By 2030”
usnews.com/news/articles/2012/09/27/report-100-million-could-die-from-climate-change-by-2030
And the report to which it refers: “Climate Vulnerability Monitor” at
daraint.org/climate-vulnerability-monitor/climate-vulnerability-monitor-2012/report/
Some quotes:
“THE MAIN FINDING OF THIS REPORT IS THAT CLIMATE CHANGE HAS ALREADY HELD BACK GLOBAL DEVELOPMENT: IT IS ALREADY A SIGNIFICANT COST TO THE WORLD ECONOMY, WHILE INACTION ON CLIMATE CHANGE CAN BE CONSIDERED A LEADING GLOBAL CAUSE OF DEATH.”
& “Climate change is already with us. It kills. It steals livelihoods. And it takes the most from those who have the least. But the costs are largely hidden from our understanding. Inaction on climate change actually takes from us all…”
One needs to consider the victims of bodily and property harm now and into the future (since a portion of CO2 can remain in the atmosphere up to 100,000 years) of the plethora of effects from climate change: heatwaves, droughts, floods, increased intensity of storms & hurricanes, wildfires, sea rise, disease spread, harm to food productivity from these, etc.
For instance it is estimated that half of the heat-related deaths (or 35,000 deaths) in Europe in the summer of 2003 can be attributed to AGW. WHO estimates that 150,000 people each year die from disease spread due to AGW.* If you calculate all the deaths, harms, and property damage from AGW, it would be staggering. “Attribution science” is improving all the time, and is finding AGW implicated in more and more harms.
So then the question is how many people am I personally responsible for killing from AGW effects. Well, maybe for a typical American it only comes to one person from a lifetime of a person’s industrial GHG emissions (note we are NOT counting breathing here, since emissions from that are much needed by plants). Maybe some here would be okay with that, thinking I’m only killing one person, but I’m not okay with it. And, of course, we can’t really calculate the exact number, since some of our emissions will be there in the atmosphere for many 1000s of years. So it might be each typical American is responsible for the death of, say, 10 people (or more) with a 1000 year time frame.
This simply a matter of Catholic “faith and morals,” it’s a matter of violating one of the 10 Commandments, “Thou shalt not kill,” which can be found in nearly all religions.
See
chgeharvard.org/topic/climate-change-and-infectious-disease
&
who.int/globalchange/mediacentre/events/climate-health-conference/en/
&
who.int/globalchange/mediacentre/events/climate-health-conference/whoconferenceonhealthandclimatechangefinalreport.pdf?ua=1
“Already, climate change is causing hundreds of thousands of deaths every year from changing patterns of disease, weather events, such as heat-waves and floods, and degradation of water supplies, sanitation, and agriculture, according to the latest WHO data. Children, women and the poor are among those most vulnerable to climate-related impacts and consequent diseases, such as malaria, diarrhoea and malnutrition.”