The concept of 'environmental footprint' has evolved significantly since its introduction in the 1990s. Initially, it focused solely on carbon emissions, but contemporary models incorporate a broader spectrum of ecological impacts, including water usage, land degradation, and biodiversity loss. This expansion reflects a growing recognition that sustainability cannot be achieved by addressing climate change in isolation. For instance, a product may have a low carbon footprint yet contribute heavily to water scarcity in its production region. Consequently, researchers now advocate for a holistic assessment framework that integrates multiple environmental indicators. Such frameworks, however, face methodological challenges, such as data availability and the difficulty of comparing disparate impacts. Despite these obstacles, the trend towards comprehensive metrics is vital for informing policy decisions and corporate strategies aimed at genuine ecological balance.
❓ Theo đoạn văn, lý do chính để mở rộng định nghĩa về 'dấu chân môi trường' là gì?
A. Đưa phát thải carbon trở thành yếu tố chính
B. Để nhận thức rằng tính bền vững đòi hỏi phải giải quyết nhiều tác động sinh thái khác nhau ngoài biến đổi khí hậu.
C. Để đơn giản hóa việc đánh giá tác động môi trường của sản phẩm
D. Để tăng cường khả năng tiếp cận dữ liệu cho các nhà nghiên cứu
✅ 正确答案
To recognize that sustainability requires addressing various ecological impacts beyond climate change
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first