Human do have a negative a negative impact on the environment, as much as the environment serves as a provider there are numerous things human do that are environmental from nature. Humans always take from nature but never give back. Farming activities is detrimental to the soil as it erodes the tope soil. Pesticides and fertilisers  end up  in rivers and this promotes algae and eutrophication also aquatic plants and therefore traps oxygen in the ocean leading to the death of many aquatic animals. Such things ad the ozone layer, the ozone layer which protects people from the harmful sun rays is depleting or rather has holes due to CFCs which is detrimental to the ozone layer.