Climate change is a big enough worry. There are nine other issues on a similar scale, each of which is globally worrisome. Take your pick, from changes like soil erosion, ozone depletion, freshwater scarcity. Check the chart to see that some are worse than climate change, but may not be as easy to talk about.
“Rate Of Environmental Degradation Puts Life On Earth At Risk” – The Guardian
Pretending Not To Panic 