As it is estimated that only 5% of the oceans have been explored, more biologists will be needed to study the ocean and the unknown species that live there. However, since most funding comes from government agencies, the demand for marine biologists will be limited by the budget provided by these agencies. Without a detailed understanding of the effects of pollution, coastal development, overfishing and the sustainability of oxygen production in the oceans, there is a strong possibility that the environment and human health will be at great risk. As the human population increases, wildlife and marine life will be exposed to deadly threats such as habitat loss and disease. Marine biologists and their research will be needed so that potential problems can be addressed now, rather than too late.