Driving? Avoid peak travel times. Traveling on off-peak days can prevent you hitting congested highways and sitting in traffic.
Flying? Avoid layovers. Frequent takeoffs and landings use more fuel, and the pollution emitted on night flights has a more detrimental impact on the climate.
Pack light. Extra weight causes airplane and cars to lose efficiency and use more fuel to travel. Leave the kitchen sink at home.
Be an Ecotourist. Whether going far or near, add into your trip adventures that include learning about the intricacies of our natural world and/or advocacy to protect the environment and local communities. It will make you feel good, and you will be contributing instead of taking. Now that’s making a memorable trip.