
Umair Irfan
Former correspondent
Latest articles by Umair Irfan


We don’t need to know how this pandemic started to begin to prevent the next one.


It’s the beginning of a years-long effort to clean up and track the effects of chemicals in East Palestine, Ohio.


The train derailment and chemical spill was the culmination of a long trend of cost-cutting in the rail industry.


Researchers have found that California’s electric cars are already keeping asthma patients out of ERs.


Wind and solar are rapidly growing, but Texas Republicans want to throw a lifeline to natural gas.


The central bank is studying climate risks at major banks, but Fed chair Jerome Powell doesn’t want to get involved in policy.


Economic growth outpaced the increase in carbon dioxide pollution.


XBB.1.5, a subvariant of omicron, is gaining ground in the US, but deaths can still be avoided.


A new fleet of electric mail trucks heralds the next phase of the EV revolution.


There aren’t any monoclonal antibody drugs that can treat the latest Covid-19 variants.