pollution
harmful substances or effects that damage the air, water, land, or living things.
In article: “The fossil fuels that we've been burning for more than a century produce two very different kinds of pollution.”
污染；會傷害空氣、水、土地或生物的有害物質或影響。
Current Events · September 9, 2026
The Trail of Clues That Our Planet Might Be Heating Faster Than We Realised
Today’s Wednesday lesson uses a BBC News science and climate article about why some researchers think global warming may be accelerating, and why cleaner air is only one part of the explanation.
Level: intermediateTime: 5–10 minutes
Source article
Title: The trail of clues that our planet might be heating faster than we realised
Source: BBC News
Published: September 8, 2026
Original article: BBC article link
Article Summary
BBC News examines a debate in climate science: recent record heat may not just be a temporary run of hot years, but a sign that warming is speeding up. Scientists say falling sulphur pollution from power stations and shipping has reduced a cooling effect that once reflected some sunlight away from Earth.
The article also explains a wider concern. Aerosols, clouds, ocean heat, and Earth’s energy imbalance are interacting in complex ways, and some recent observations suggest the climate could be more sensitive to greenhouse gases than earlier central estimates assumed. Researchers stress caution, but say faster emissions cuts become even more important if the newer evidence proves correct.
文章摘要
BBC News 探討氣候科學中的一個重要問題：近年連續破紀錄的高溫，可能不只是短期自然波動，而是全球暖化加速的跡象。科學家指出，發電廠與航運排放的硫污染下降後，原本能把部分陽光反射回太空的冷卻效果也減弱了。
文章進一步說明，更大的擔憂在於氣溶膠、雲層、海洋升溫與地球能量不平衡之間的互動十分複雜。一些最新觀測顯示，氣候對溫室氣體的敏感度可能高於過去的中間估計。研究人員仍提醒要謹慎解讀，但若這些證據成立，快速減排就會變得更加迫切。
5 Daily Words
emissions
gases or particles released into the air, especially by vehicles, factories, power plants, or other human activity.
In article: “Thanks to clean-air policies around the world... sulphur emissions are falling sharply while carbon dioxide emissions remain near record highs.”
排放物、排放量；車輛、工廠、發電廠或其他活動釋放到空氣中的氣體或微粒。
aerosols
tiny solid or liquid particles suspended in the air; in climate science, some can reflect sunlight and affect clouds.
In article: “And it seems aerosols are playing a role.”
氣溶膠；懸浮在空氣中的微小固體或液體粒子，在氣候科學中有些會反射陽光並影響雲層。
imbalance
a situation in which two forces, amounts, or parts are not equal or not in the right proportion.
In article: “Scientists call the difference Earth's energy imbalance.”
不平衡；兩種力量、數量或部分不相等，或比例不恰當的狀態。
variability
the quality of changing or differing over time; in science, the range of differences seen in measurements, systems, or model results.
In article: “Scientists call this variability ‘climate sensitivity’: how much the climate responds to gases like carbon dioxide.”
變異性、可變性；在科學語境中，指測量、系統或模型結果隨時間或條件出現差異的程度。