Stories by Evan Lehmann

Obama, bracing for battles with Congress, calls climate change the biggest threat

Researchers say the social cost of carbon will be six times larger than the Obama administration's estimate

The new U.S.-China deal to address climate change will face political problems

The Environmental Protection Agency's plan to cut CO2 pollution from coal-fired power plants now faces significant opposition

Land use will complicate the speed of climate change as a threat to species

A new report shows that failing to combat global warming would dramatically increase the cost of such climate insurance

Rep. Gary Peters is uncertain whether the EPA's new caps on carbon can help get him elected to the U.S. Senate from Michigan

White House data splurge meant to "change the game" on climate

Whether it's water or communication systems, infrastructure is ill prepared to keep functioning under changing climate conditions

Research suggests that flooding from sea level rise will prove more costly than building barriers to protect coastlines

Coastal wetlands and other natural barriers are disappearing, increasing the risk hurricane damage for coastal cities

New EPA rules will target coal plants by 2015, trucks by 2018

President Obama is expected to appeal to Americans about the perils of rising temperatures and the economic benefits of dealing with climate change

Large-scale, upper-level atmospheric disturbances could be used in forecast models to better predict the initiation of storms

If Congress fails to act soon, Obama threatened to use his executive authority to regulate carbon dioxide emissions

Pres. Obama seemed to signal in his inaugural address that climate change would become a greater priority in his second term, but his goals remain unclear

Homeowners without robust sand dunes suffered the worst effects of Hurricane Sandy

Neither presidential candidate addressed the challenges posed by global warming

A testy exchange on energy policy remains as close as Barack Obama and Mitt Romney have come to addressing climate change in this campaign's debates

An open letter calls on Barack Obama and Mitt Romney to address the challenges posed by rising seas as a result of climate change

A climatologist says an embattled report recommending that the state prepare for a one-meter rise by 2100 is a reasonable based an sediment samples from 10 coastal wetlands

Years of coastal flooding seem to argue for climate adaptation, but state lawmakers may ban such policies

A new academic analysis finds conservatives expressing more and more distrust in science in recent decades, particularly educated conservatives

Nearly 70 percent of the roughly 30,000 miles of levees in the U.S. are not trusted by government flood officials to hold back floodwaters