How can government intervention effectively address the negative externality caused by homeowners planting trees?

When homeowners plant trees, they create a positive externality by improving air quality and providing shade, but this can also lead to negative externalities like reduced sunlight for neighbors or increased maintenance costs. Government intervention can help manage these issues by creating guidelines or regulations that encourage responsible tree planting. For example, the government could set rules about how tall trees can grow and where they can be planted to minimize their impact on neighbors. They could also provide incentives, such as tax breaks, for homeowners who plant trees in a way that benefits the community without harming others. This way, the government helps balance the benefits of tree planting with the potential drawbacks for the surrounding area.