To create lasting climate change mitigation the replacement of high carbon emission intensity power sources such as conventional fossil fuels oil coal and natural gas with low carbon power sources is required fossil fuels supply humanity with the vast majority of our energy demands and at a growing rate. Jstor is a digital library of academic journals books and primary sources. Jstor is a digital library of academic journals books and primary sources. Climate change and the shortages of water and food that come from it is becoming increasingly linked to conflict a senior united nations official told the security council on wednesday warning that countries most vulnerable to drought and crop failure are also most vulnerable to conflict and fragility