RENEWABLE Energy CHALLENGES

1. 気候・降水量などの平均値の、平年からの乖離が徐々に増すこと。また、人為的要因による気候の変化。 (goo辞書, 日付不明, 気候変動)

2. 気候変動は、気温および気象パターンの長期的な変化を指します。これらの変化は太陽活動の変化や大規模な火山噴火による自然現象の場合もありますが、1800年代以降は主に人間活動が気候変動を引き起こしており、その主な原因は、化石燃料（石炭、石油、ガスなど）の燃焼です。 （国際連合広報センター, 日付不明, 気候変動とは何か？)

3.  近年、猛暑日が増加したり、集中豪雨などの極端現象が頻繁に起こったりしていて、私たちの生活にさまざまな影響を及ぼしています。このように、気温や雨の降り方などが数十年を超える長期にわたって変化する現象のことを「気候変動」といいます。(A-PLAT Climate Change Adaption Information Platform 気候変動適応情報プラットフォーム, 日付不明, 気候変動とは)

1.  “energy that is produced using the sun, wind, etc., or from crops, rather than using fuels such as oil or coal” (Cambridge Dictionary, no date, renewable energy)

2. Renewable energy means using power from things in nature that never run out, like sunlight, wind, water, and heat from the Earth. Unlike fossil fuels, which are finite and contribute to climate change, renewable energy sources are sustainable, clean, and release minimal greenhouse gases. Using them is really important for combating climate change and making sure we have enough energy for the future. (BBC, no date, renewable energy)

3. “Renewable energy is energy derived from natural sources that are replenished at a higher rate than they are consumed. Sunlight and wind, for example, are such sources that are constantly being replenished. Renewable energy sources are plentiful and all around us.

    Fossil fuels - coal, oil and gas - on the other hand, are non-renewable resources that take hundreds of millions of years to form. Fossil fuels, when burned to produce energy, cause harmful greenhouse gas emissions, such as carbon dioxide.” (United Nations, no date, renewable energy)