国际新闻
Polluted Delhi Tries ‘Green’ Fireworks to Clear the Air at Diwali
来源: NYT > World News · 发布于
India’s top court decreed that only more environmentally friendly fireworks could be set off this weekend, citing air quality concerns. But environmental activists call it a “green wash.”
India’s top court decreed that only more environmentally friendly fireworks could be set off this weekend, citing air quality concerns. But environmental activists call it a “green wash.”
相关报道
No clear winner after tight New Zealand general election
Weeks of coalition talks could follow after preliminary results pointed to a highly divided national parliament.
feeds.bbci.co.uk ·
Air holes turn silicon wafers into flat ultraviolet focusing mirrors for compact optics
Traditional lenses and mirrors focus light using curved surfaces. Metasurfaces can achieve similar functions with a flat layer of nanoscale structures that locally control the phase of light. Extending these flat optics into the ultraviolet could support compact systems for high-
Phys.org - latest science and technology news stories ·
Can a Radar-Equipped AC Actually Cut Your Power Bill?
Air conditioners can now follow you from room to room to cut power draw. Saving the planet, however, won’t come from a smarter breeze.
WIRED ·
Haitians cheer El Salvador’s Bukele amid gang war
Some Haitians have cheered on El Salvadorian troops deployed to fight gangs in the Haitian capital.
Al Jazeera – Breaking News, World News and Video from Al Jazeera ·
South Africa’s Politics May Never Be the Same Again
The African National Congress lost big in local elections, turning a once-dominant force credited with overturning apartheid into “any other political party.”
NYT > World News ·