Written by Hugo Lambrechts Climate change or global warming is a phenomenon that is happening due to an increase in CO2 emmisions. This can be demonstrated by placing a infrared heater next to an experimental flask. The temperature inside the flask is then taken using a infrared termometer every two minutes for 30 minutes. Temperatures can then be plotted on a graph over time and show ‘normal’ climate. Now the jug is filled with some CO2 and the demonstration is repreated and new graph is given to compare temperatures. This is a good way to demonstrate climate change.