① The inflation rate was the highest in a decade.
② Today is by far the hottest day of the year.
③ Air pollution is one of the most important issues in the modern era.
④ No other city in Japan is as crowded as Tokyo.
⑤ I think no other energy source is cleaner than wind.
⑥ We have to do something about food waste as soon as possible.
⑦ The more responsible we become, the less wasteful society will be.