
Umair Irfan
Former correspondent
Latest articles by Umair Irfan


The agony and ecstasy of a soccer penalty kick, explained with behavioral economics.


Lots of athletes fake falls and injuries. But soccer stars have honed the art.


Automakers, agriculture, coal, chemicals, and heavy truck makers all got regulatory relief from Pruitt.


Pruitt did lasting damage to the agency, and his replacement, Andrew Wheeler, will pick up where Pruitt left off.


Scott Pruitt was productive and loyal to Trump. But his ambition got in the way.


The resignation came in an especially damning week of revelations about his improprieties.


The most important climate change fights right now are in state courtrooms.


Unfortunately, we’re already in another hurricane season.


These tickers show the unrelenting rise in global temperatures and carbon dioxide.


The retiring Supreme Court justice helped create the legal basis for regulating greenhouse gases, to the chagrin of many conservatives.