문제 1Carbon neutrality refers to a state in which the amount of greenhouse gases a country or company releases into the atmosphere ①is balanced by the amount it removes, resulting in zero net emissions. Achieving this goal typically requires several sequential stages rather than a single sudden action. First, organizations attempt to reduce emissions directly ②by replacing fossil fuels with renewable energy sources such as solar or wind power. Next, they improve efficiency throughout their operations, ③minimizing the energy wasted during production and transportation. Only after these direct measures have been maximized do most organizations turn to offsetting, ④which involve funding projects like reforestation or carbon capture to compensate for emissions that cannot yet be eliminated. Critics argue, however, that some companies exploit offsetting too early, ⑤using it to avoid making genuine reductions. Therefore, experts insist that a credible roadmap must always prioritize actual emission cuts before relying on compensation.
문제 9Not all parts of a city experience the same temperature, even when they are located close to one another.
(A) Tall buildings packed closely together also block wind, trapping warm air within narrow streets. In contrast, areas with abundant trees and open water naturally stay cooler, since plants release moisture that helps lower surrounding temperatures.
(B) To reduce this effect, many cities have begun installing rooftop gardens and expanding public parks, hoping that additional greenery will absorb less heat than pavement does.
(C) On a summer evening, downtown streets often feel noticeably hotter than nearby parks or suburban neighborhoods, even after the sun has set. This phenomenon, known as the urban heat island effect, occurs when cities retain more heat than surrounding rural areas because of their dense concentration of asphalt, concrete, and buildings. Unlike soil or vegetation, which absorb and release heat gradually, these man-made surfaces absorb sunlight during the day and slowly radiate it back at night, preventing temperatures from cooling.