Explanation:
People may be worried about the financial aspects of providing environmental protection. For example, factories and tractor-trailers are largely responsible for polluting the atmosphere. They can cut back on the pollution, but by doing so, there will be less products produced. With less products to sell, there is less money to be made. As a result, businesses will lose money by attempting to protect the environment. This is only one example of a financial worry when considering to promote environmental protection.
There's also many who believe there is no need for environmental protection as they do not consider the extinction of certain species and climate change to be a threat. If they feel there is no danger, then there is no reason for them to go out of their way to protect the environment.
Others are simply lazy. For example, there is a plethora of trash accumulating in all areas of the world. It is so bad that there are "islands of trash" forming in the ocean. It would be easy for people to throw away their own trash as well as collect any trash they see on the ground - even if it is not theirs. However, this is typically not the case because many do not care and or are too lazy to commit to any of these selfless actions.
There are many more reasons as to why people are opposed to environmental protection. These are just three of the main reasons (in my opinion at least).