假如你是学生会主席李华，为积极响应落实“厉行节约，反对浪费”的精神，学生会将举办一次以“光盘行动”为主题的英语演讲比赛，请你用英语写一篇演讲稿，内容包括：
1．浪费食物的危害；
2．“光盘行动”的措施；
3．呼吁大家共同行动。
注意：1.词数80左右；
2．可以适当增加细节，以使行文连贯；
参考词汇：光盘行动 Clear Your Plate Campaign
Good afternoon, everyone! It is my honor to deliver a speech on “Clear Your Plate”campaign.
There is no doubt that excessive food waste will pose a potential threat to food security. And it costs energy to deal with wasted food, ultimately increasing greenhouse gases. So when we dine out, it is our responsibility to order a proper amount of food and take leftovers home. In addition, schools should conduct some activities to demonstrate the significance of reducing food waste.
For a greener environment and more prosperous future, let's all clear our plates! Thank you！
