Google it. If your topic is a phrase, put quotes around it (this tells Google to look for those words all together in that order). You can add other words too, but since you need an article from the previous 12 months, definitely add 2018, like this:
"overpopulation" news research 2018
"rising sea level" magazine study 2018
Here's a shortcut to Google:
To find a popular article on your new technology topic, you can do a database search.
Here are links to a few library databases in which you can find popular articles. You only need to use one of them! The blurbs beneath the links tell you how to type in your search.