Pedestrianizing city streets reduces daily noise by 3.1 decibels, a new study of Barcelona’s "green axes" shows. Data from acoustic sensors prove that fears of noisy crowds replacing car noise are unfounded, as residents on these calmer streets now use their balconies more often.

2026年2月2日 · 徐丽 · 来源：dev头条

В Белом доме назвали стоимость атаки на Иран для США02:24

3. 全球最完整的绿电产业链与成本优势

Salman Rus

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Kyrsten Si

The government has hailed the ban on advertising foods high in fat, salt and sugar before 9pm on TV and completely online, which came into force on 5 January, as a decisive and world-leading move that will remove 7.2bn calories from UK children’s diets every year.

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