The U.S. Army released its new plan to tackle climate change, which the service claims “poses an immediate and serious threat to U.S. national security and affects how and where the Army trains and operates.” The new “Army Climate Strategy” (ACS) Implementation Plan states that the Army must do more than just “adapt” to climate change because “dangerous levels of greenhouse gases (GHG) have already accumulated in the Earth’s atmosphere.” The service must instead work to mitigate the effects of climate change.