📖+10 XP
🎧+10 XP
✅+15 XP
Level A1 – BeginnerCEFR A1
2 min
74 words
- Researchers at a university studied diamond dust for cooling.
- They tested its possible use high in the stratosphere.
- The plan is to reflect sunlight and cool the Earth.
- Volcanic sulfur also reflects sunlight but causes harms.
- Diamond dust can include tiny carbon impurities that absorb light.
- These impurities reduce light scattering and increase heating.
- The team found these tiny diamonds are not a good option.
- They recommend stopping work on unsuitable materials for cooling.
Difficult words
- researcher — A person who studies and finds new knowledgeResearchers
- stratosphere — The layer of the atmosphere above the clouds
- reflect — To send light back from a surface
- impurity — A small unwanted substance inside a materialimpurities
- scatter — To make light spread in many directionsscattering
- sulfur — A yellow chemical from volcanoes and rocks
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Do you agree with stopping work on materials that do not help cooling?
- Have you ever seen a diamond?
- Do you think reflecting sunlight can help cool the Earth?
Related articles
13 Jan 2026
19 Feb 2026
Red‑tagging and renewable energy in the Philippines
The Philippine government has opened renewable energy projects to more foreign investment while authorities have intensified "red‑tagging" of activists. Local NGOs that deliver disaster relief and clean technology say they have been targeted, hindering aid work.
2 Feb 2026
Wildfire smoke in late pregnancy linked to higher autism risk
A study of more than 200,000 births in Southern California found that exposure to wildfire smoke during the third trimester was associated with higher autism diagnoses by age five. Researchers say the results are not conclusive and need more study.
29 Jul 2025
27 Feb 2026