The issue focused on climate change and scientific theories that scientists hold have led to concerns about science itself. Scientists claim climate change is happening because we're hitting "safe temperatures," which researchers believe could create additional pollution in the atmosphere. But studies show humans are burning CO2 — meaning those substances created by plants or animals like insects, worms and algae — every day for thousands of years. In theory, scientists say they should put our carbon dioxide emissions down at around 30 parts per million (ppm). Scientists agree they don