Final answer:
Ecotourism has both pros and cons: it generates significant revenue for conservation but can also lead to environmental damage if not managed properly.
Step-by-step explanation:
The economic impact of ecotourism is a subject that can be seen in both a positive and negative light. As a Pro, ecotourism brings a significant amount of money that contributes to conservation projects. This funding is crucial for the maintenance of protected areas like Yosemite National Park, which generates substantial revenue while ensuring the preservation of its natural resources. Conversely, tourism, when not managed carefully, can lead to environmental degradation. Overcrowding, such as that seen on Caribbean islands, leads to pollution and pressures on local ecosystems, as described in the example of larger-than-population tourist numbers on some islands. This illustrates the Con of ecotourism. Hence, ecotourism can either support biodiversity and conservation efforts or aggravate environmental issues depending on how well it is managed.