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 shift reflects a growing recognition that sustainability cannot be achieved by addressing a single metric. 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 indicators. However, such comprehensive evaluations are often data-intensive and geographically specific, posing challenges for standardization. Despite these difficulties, the trend towards multidimensional footprint analysis is crucial for informing policy decisions that aim to balance economic growth with environmental preservation.
❓ Theo đoạn văn, thách thức lớn trong việc thực hiện đánh giá dấu chân môi trường toàn diện là gì?
A. A. Họ yêu cầu dữ liệu carbon quá mức.
B. B. Chúng khó tiêu chuẩn hóa do cường độ dữ liệu và tính đặc thù khu vực.
C. C. Họ phớt lờ sự suy giảm đa dạng sinh học.
D. D. Họ chỉ tập trung vào việc sử dụng nước.
✅ 正确答案
B. They are difficult to standardize due to data intensity and regional specificity.
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