Most scientists agree that global warming is a major contributor. They are warning that if the world doesn't reduce greenhouse gas emissions, the frequency and strength of future heatwaves will only increase.
科學家們不約而同把矛頭指向「全球暖化」，並且警告，如果人類的溫室氣體排放再不減緩，未來熱浪出現的頻率與強度只會有增無減。