As explained in David Loid’s text, climate change is only the peak of the iceberg in terms of our ecological crisis. In fact, he says that other deep causes are responsible for it. One of these causes is us, humans. In fact, humans were a big factor in pollution throughout the time. To prove that, Loid presented multiple events and sources of pollution done by us: radioactive catastrophes, oceans full of plastic, carbon emissions, destruction of the ecosystem, and even more. By presenting these sources of pollution, he wants to warn us about the huge impact these will have on our ecosystem.