Final answer:
Harvey's four options for addressing environmental concerns are not explicitly listed in provided contexts, but 'mitigation' and 'adaptation' are two strategies widely recognized for addressing these concerns through reducing emissions and adjusting to sustainable lifestyles respectively.
Step-by-step explanation:
Harvey's four options for addressing environmental concerns are not explicitly defined in the scenarios provided. However, based on the given context, we can discuss commonly recognized strategies. When considering ways to address environmental concerns and manage climate change, two main strategies are consistently recognized: mitigation and adaptation. Mitigation refers to efforts to reduce or prevent the emission of greenhouse gases, such as using alternative energy sources, conserving energy, or planting environmentally-suitable plants. Adaptation, on the other hand, involves adjusting our lifestyles, economies, and environments to more sustainable models, reducing the negative impacts climate change might have on our ecosystems and societies.
Other possible strategies that are often discussed in the literature, although they are not mentioned in the given context, include transforming our energy base and human societies to be less reliant on fossil fuels, and drastically shifting how we live and consume resources. The ignoring approach, while certainly an option, is not a solution and represents the lack of action against climate change.