Greenhouse gases are essential to life on Earth, but when their concentrations become too high, they contribute to global warming and climate change. Today, we will discuss what greenhouse gases are, their sources, effects and what we can do to reduce their emissions. What are Greenhouse Gases? Greenhouse gases are gases that trap heat in the Earth’s atmosphere, making it difficult for the planet to cool. These gases include water vapour, carbon dioxide, methane, ozone and nitrous oxide. Carbon dioxide is the most abundant of these gases, making up about 60% of all human-caused greenhouse gas emissions. These gases are essential to keeping the Earth at a liveable temperature. Without…