Listen to the following conversation between two urban planners, Lisa and Mark, discussing the challenges of sustainable development:
Lisa: The increasing population density in urban areas poses significant challenges. We must prioritize sustainable practices to manage this growth.
Mark: Absolutely, Lisa. One of the biggest issues is balancing resource consumption with environmental preservation. Urban sprawl often leads to habitat destruction.
Lisa: Yes, and that's why we need to incorporate green spaces into our planning. Not only do they improve air quality, but they also enhance the community's well-being.
Mark: That's a great point. However, it can be quite expensive to retrofit existing urban environments. Local governments often struggle with funding for such projects.
Lisa: True, but we also have to consider long-term benefits. Investing in sustainable infrastructure can lead to reduced healthcare costs due to better air quality and more active lifestyles.
Mark: I agree. In the end, it's about creating a blueprint for future generations, ensuring they have the resources and environment needed to thrive.
Lisa: Right, and we might also need to lobby for policy changes that prioritize sustainable development in urban planning policies.
Note: This question has been adapted from its original format to accommodate a reading-based version. In the official TOEFL exam, speaking and listening sections require verbal responses and audio prompts, which are not represented here. Please note that this adaptation may not fully reflect the nature or difficulty of the official exam. The audio feature for these sections will be available soon.