The author of this resource explains why geography is important and shares one school's vision for embedding geography in all aspects of the students' day. If you share the interest in adding more geography to your lessons or units, you should read this article and take inspiration.
One way of adding more geography is to further integrate it into history classes on a regular basis, and this article explains how to do that. It's a natural partnership that should be fully developed in every history class--especially in schools that don't teach geography as a separate subject.
National Geographic explains how you can integrate geography lessons into your ELA classes and use geography to help build your students' literacy skills. They also provide resources for all grade levels that are always excellent.
Research shows that there are links between the math and ELA CCSS and geography skills, and this article describes those links along with sharing the importance of spatial thinking. If we're not going to teach our kids geography in isolation, we need to teach it in concert with other subjects, and this is a great starting point.
Gil Grosvenor quite clearly explains why we need geography education, why students who study geography can get better jobs, and what problems we have when people don't understand geography. You can use this information to encourage your students or to explain to parents why you are teaching geography in your classes.