CO2: 431.44 ppmOnce a wildfire starts, it can spread to an area too massive to control.
One climatologist said "a perfect storm" of climate extremes primed the western U.S. for one of its worst fire seasons in a decade. Meanwhile, Canadian wildfire smoke fills the air.
With a heat wave expected to peak in Southern California on Wednesday, forecasters warned of elevated fire risk.
European Commission proposal to overhaul emissions trading system would give companies less demanding pathway to reductions
Wopke Hoekstra confirms planned reduction in carbon permits will be softened
Severe fire season in northern hemisphere also sees fast-moving outbreaks in Scotland and Canada
As Europe battles a deadly record-breaking heatwave, the World Health Organization (WHO) issued new guidance on Thursday to help countries face scorching temperatures now and in the future.
Most Australian capital cities have at least 80% chance of unusually warm and dry spring as climatologists watch developing system with increasing alarm
Maricopa County faces another brutally hot summer, and it's the final year of millions of dollars in federal funds that have gone toward expanding heat relief programs.