angeles and so he s living there and i m living in new york city. he was bragging about the warm weather out west. it s like, i got nothing on new york city. chad myers, thank you so much. thank you. merry christmas to you. in these days of rampant social media, current events can be summed up in one hashtag. brooke baldwin counts down the biggest stories of 2015. reporter: social media s role in breaking news is undeniable but sometimes it s the hashtags that start a movement. here are the top trending hashtags for 2015. number ten, guacamole with peas. when the new york times tweeted a recipe that included peas, the internet was skeptical. people jumped on twitter, not showing love. even the president of the united states even jumped in. i did a taste test. it was kind of delicious.