: Last month, the world failed to agree on a process that would slow down the rate of climate change. Scientists believe that the world is heating up because of an increase in three gases in our atmosphere: carbon dioxide, methane and nitrous oxide. The amount of carbon dioxide in the atmosphere is increasing due to human activity. It is already at its highest in 650,000 years; we know this from analysing ice that has remained frozen during this period with bubbles of air trapped …