T-1B4 - Shipping T-1B4a - International Shipping¶ T-1B4b - Navigation¶ T-1B4b-1 - Shift to LNG fuel for marine freight transport T-1B4b-2 - More efficient marine freight transport T-1B4b-3 - Biofuel for LNG marine freight transport T-1B4b-4 - Biofuel for marine freight transport T-1B4b-5 - Shift to electric marine freight transportion