给定一篇英文文章，生成一个主题词列表，列出文章中最常出现的前10个单词。


As we approach the 50th anniversary of the first Earth Day on April 22, the world is in a very different place than it was in 1970. Today, we face a global pandemic, climate change, and other environmental and social challenges that require urgent attention. While taking care of our planet and its inhabitants seems more daunting than ever, we must remember that each of us has the power to make a difference. In honor of Earth Day 2020, here are some ideas for how you can take action to protect the environment and promote sustainability.
主题词列表：Earth Day, global pandemic, climate change, environmental challenges, social challenges, urgent attention, planet, inhabitants, power, difference. 

最常出现的前10个单词：Earth Day, global, pandemic, climate, change, environmental, social, challenges, urgent, attention.