english: But I'm going to focus on the heart of the problem, which is the fact that we still rely on dirty, carbon-based fuels for 85 percent of all the energy that our world burns every year.
non_english: Ali fokusiraću se na srž problema, a to je činjenica da se i dalje oslanjamo na prljavo gorivo na bazi ugljenika za 85% ukupne energije koju sagorimo svake godine.