Today in our environmental science lecture, we're discussing urban farming. One key point is that rooftop gardens can reduce a building's energy consumption by up to 25% because they provide natural insulation. However, the initial cost of installing such a garden is high, often exceeding $50,000 for a medium-sized roof. Despite this, many cities offer tax incentives to offset these expenses. For example, in Chicago, building owners can receive a rebate of $5 per square foot of green roof. This has encouraged over 600 projects since 2005. But remember, maintenance requires regular watering and weeding, which adds ongoing costs.
❓ What does the lecturer say about the financial aspects of rooftop gardens?
A. A. They always cost less than $50,000 to install.
B. B. Tax incentives can help reduce the initial installation cost.
C. C. Maintenance costs are usually covered by the city government.
D. D. The energy savings always exceed the installation costs.
✅ 正确答案
B. Tax incentives can help reduce the initial installation cost.