The global shift to cleaner sources of energy is not yet a casualty of Russia's war in Ukraine, according to new research showing power generation has become less carbon-intensive, and clean energy investment has climbed since the conflict started. European nations that led the transition away from fossil fuels in recent years now find themselves scrambling to secure new sources of natural gas ahead of winter as Russia squeezes supply lines. In one of her first major policy announcements, new British Prime Minister Liz Truss promised to approve more North Sea oil drilling, and lift a ban on fracking to...