TOKYO/DUBAI/SEOUL -- The question of whether the world has enough gas looms large as the Northern Hemisphere faces its first winter since Russia's invasion of Ukraine triggered upheaval in global energy markets.

An LNG tanker arrives in Japan. A colder-than-expected winter could further tighten the world's gas market. (File photo by Kyodo)
Supplies and storage levels look adequate for now but concerns remain for 2023