The Dow and the tech-heavy Nasdaq were down in morning trading while Europe barely moved either side of the positive-negative line after Asia drifted down slightly.
The pan-European STOXX 600 index rose 0.4pc to a new closing high of 452.57, having earlier hit an all-time high of 452.71. It added 0.8pc for the week.
"If the increase in yields is the consequence of the normalisation of the economy, it's something that is going to part of the broader framework. If there's a recovery going on, if inflation starts to go up and normalise economic activity, then nominal yields will have to go up.
The ECB study is part of a broader analysis of the risks that climate change poses to the financial sector, ranging from physical damage to changes in regulation or in consumer preferences.
"This may become increasingly relevant if emissions are not effectively reduced in the long run and if firms and economies fail to adapt to climate change," the ECB said.
The area has come under sharper scrutiny following the demise this year of supply-chain lender Greensill and Archegos, a family office run by former Tiger Asia manager Bill Hwang.
"What concerns me the most is that sometimes banks themselves don't have visibility on the portfolio of these entities," he said in an interview.
"By all accounts it seems that (by) the end of June, about 70% of the population should be vaccinated at least with the first jab," Lagarde told an online event.
"This evidence suggests that we should avoid withdrawing policy support - either deliberately or by tolerating adverse spillovers - until the output gap is closed and we see inflation sustainably back at 2%," Panetta said in a speech.
The euro gained 0.3% to $1.2055 while the dollar index, measured against a basket of currencies, was down 0.2% .
Real yields in the US remain deeply negative on a 10-year basis and reflect some of this uncertainty that will continue to limit the upside for the US dollar.