Here are 10 celebrities who have taken a stand in the past year to make a positive impact on the world. Meghan Markle, who married into Britain's royal family in May, has focused on women's rights and collaborated with Grenfell Tower fire survivors to create a community cookbook. Emma Watson, famous for her role as Hermione in the Harry Potter films, spent 2018 advocating for the #MeToo movement and donated one million pounds to support charities fighting sexual abuse. In October, Watson penned a public letter advocating for the end of strict abortion laws across countries like India and Ireland. At the same time, she was seen wearing earrings made from shrapnel and unexploded bombs from Laos. David Attenborough, the renowned nature documentary broadcaster in his nineties, used the platform of the 2018 United Nations' climate talks in Poland to support young people and emphasize the urgency of taking action on climate change. Bollywood star Amitabh Bachchan solidified his popularity in India by paying off the debts of farmers who were struggling after an agricultural crisis, spending over 40 million rupees ($560,000) in the process. 5. Elton John, a prominent British singer-songwriter known for his advocacy for LGBT+ rights, urged for increased support for individuals living in poverty to improve their access to HIV/AIDS medical treatment, condemning the lack of access as shameful. 
6. Millie Bobby Brown, the young star of the popular Netflix series "Stranger Things", was appointed as the youngest goodwill ambassador for the United Nations children's agency UNICEF this year. She pledged to raise awareness on children's rights, education, poverty, and work towards eliminating bullying, expressing her excitement at the opportunity as a dream come true. Michelle Obama, the ex-first lady of the United States, has been traveling around the world to promote her memoir and advocate for women's rights and girls' education. She aims to empower women to find hope in challenging political and social environments. David Beckham, the former captain of the English soccer team, has also joined a campaign by the charity Malaria No More UK to revive efforts in combating malaria on a global scale. The former athlete participated in a short film where he was surrounded by mosquitoes to bring attention to the fact that malaria still claims the lives of approximately 445,000 individuals annually, as reported by the World Health Organisation (WHO). Similarly, Australian actress and United Nations' refugee goodwill ambassador, Cate Blanchett, raised awareness about the Rohingya crisis, calling on nations to increase their support for refugees escaping from Myanmar to Bangladesh. Blanchett, a two-time Oscar winner, emphasized the urgency in safeguarding Rohingya refugees, describing it as a critical race against time. Princess Beatrice, the eighth in line to the British throne, has advocated for addressing online abuse and cyberbullying, particularly targeting young women and girls. She is involved in a larger anti-bullying initiative supported by celebrities like Kendall Jenner and Cara Delevingne called "Be Cool Be Nice."