The UK has already had two heatwavesheatwavesL1热浪heatwaves this summer. These heatwaves broke many old temperaturetemperature/ˈtem.pər.ə.tʃər/L1温度，表示天气冷热的数字how hot or cold something is records. Such a patternpattern/ˈpætərn/L2反复出现的方式或规律a regular and repeated way in which something happens or is done has not happened since 1911. Forecasters say more heatwaves are likely in July and August. They expect "significant bursts" of hot weather across the UK and Europe.
Human-caused climateclimate/ˈklaɪmɪt/L2某一地区的长期天气状况the general weather conditions that are typical of a place over a long period of time change is making these heatwaves hotter, more frequentfrequent/ˈfriːkwənt/L2经常发生的，频繁的happening or doing something often, and longer. Dr. Theodore Keeping from Imperial College London said the link between climate change and worse heatwaves is "settled". He added that continued use of fossil fuels is directly harming people in their homes, schools, and workplaces. This generationgeneration/ˌdʒenəˈreɪʃən/L2一代人，同一时期出生的人群all the people who were born at about the same time is now growing up with "heat days" instead of just snow days.
An El Niño event has started in the Pacific Ocean. It usually raises global temperatures by about 0.2°C. However, it will not affect UK heatwaves this summer. The main effect of El Niño on the UK is to slightly increase the chance of a cold winter.
