The Globe and Mail reports in its Saturday edition that U.S. President Donald Trump's war against Iran has sent the price of crude oil soaring and rattled international energy markets. The Globe's David Berman writes that it has also added one more reason to embrace renewables, such as wind and solar. Should investors embrace Mr. Trump as the greenest president ever? You might draw that conclusion from the stock market. The iShares Global Clean Energy ETF, an exchange-traded fund that holds shares in dozens of renewable players and serves as a good proxy for the sector, has gained nearly 13 per cent this year, and it is up 66 per cent since Mr. Trump began his second term in early 2025. The BMO Clean Energy Index ETF (ZCLN), which is priced in Canadian dollars, has delivered similar returns this year. Admittedly, much of the rebound in renewables has had nothing to do with Mr. Trump's energy polices. Lower interest rates, which surged during Mr. Biden's term, have boosted the allure. Artificial intelligence has raised demand for new energy sources to feed data centres, with renewables playing a role. And regardless of the shifting U.S. energy policies under Mr. Trump, the cost of renewable energy continues to decline.