The term "record highs" refers to a new or improved level that surpasses all previous achievements in its category. It is used to describe an extraordinary accomplishment, whether it be personal best, company profits, sports records, or weather conditions. In the context of weather, record highs refer to temperatures that exceed any previously recorded temperature for a specific date and location within a certain period of time. These extreme heat waves can have negative impacts on human health, agriculture, and the environment.