Global warming - caused by carbon emissions from the production of fossil fuels - is hurting low-income Americans, according to the National Journal.

Members of the Congressional Progressive Caucus wrote a letter to President Obama requesting more work be done to address “environmental justice concerns,” in particular the notion that low-income areas are more susceptible to the effects of global warming.

“[C]limate change compounds existing inequities,” the letter said, according to the National Journal. “Droughts, floods, wildfires, and extreme weather events increase the vulnerability of people living in areas with limited climate resiliency – communities with poor air quality, unsafe housing, and insufficient resources to plan, prepare and recover from extreme weather."

What liberals won't say when attacking fossil fuels (using the global warming argument) is that conventional coal and oil provide cheap energy for all Americans, including low-income Americans. They also won't say that Obama's “Climate Action Plan,” which he unveiled in June 2013, would cause energy prices to soar.

The president and CEO of the U.S. Hispanic Chamber of Commerce, Javier Palomarez, agrees with the first point.

“Upward mobility relies heavily on disposable income and wealth creation,” Palomarez wrote in a Feb. 26 Huffington Post piece. “Consequently, multicultural families need access to affordable energy that comes from a diverse portfolio of fuel sources, including clean coal.”

Not having to worry about high energy costs goes a long way toward helping low-income families, especially with disposable income.

“Affordable energy deeply impacts our everyday lives,” Palomarez said. “Without it, families can be left with overwhelming energy costs that would negatively impact quality of life. In addition, families faced with rising electricity bills are often forced to make tough financial choices – just to keep the lights on.”