"While a record number of coal-fired power plants were retired past year, natural gas not only beat out renewables to replace most of this lost generation but also fed most of the growth in electricity demand", the report reads.
Transportation, where emissions increased by 1 percent, remained the largest source of carbon dioxide emissions in the USA previous year as demand for diesel and aviation fuel jumped.
There are a number of factors behind the rise in USA emissions in 2018, some natural, mostly economic. A substantial increase in the demand for electricity a year ago also was met by natural gas.
However economic activity is the key reason for the overall rise in Carbon dioxide emissions.
While the rising emissions are directly tied to a surging economy and particular to energy demands over the last several, Trevor Houser, a partner at Rhodium who worked on the study, told the Post that the increase would not have been as dramatic without the Trump administration's rollback of key Obama-era policies created to confront the climate crisis that the current White House falsely claims does not even exist. For example, at a 1.5°C rise, global sea level rise could be 10 centimeters lower by the year 2100, compared with a predicted sea level at 2°C.
Greater demand for electricity, trucking and air travel contributed to the spike.More news: McIlroy remains in contention in Hawaii
Despite this, there is little to cheer in the United States data for those concerned with climate change on a global scale.
The authors of the research say the increase highlights the lack of strategy in the country's decarbozation efforts and that the existing gap in meeting the goal set in the Paris Agreement would become wider in 2019. Outside of the power sector, transportation, industry and buildings all increased their emissions as well, according to the estimates.
The last time the U.S. saw such an increase in emissions was in 2010, as the country recovered from its longest recession in decades.
Mr Trump has rolled back a number of his predecessor's environmental regulations since taking office, appointing climate change sceptics and industry leaders to head USA environmental agencies.More news: Blood moon to grace Vancouver skies January 20
Media captionNo more beef?
Emissions were up for the first time since 2015.
The report noted that though the factors behind the rise in U.S. emissions in 2018 are mostly economic, some are natural.
Image copyright Reuters Image caption Transportation remains the top contributor to US CO2 emissions What contributed the most?
In addition to the power sector contributing to the rise, the transportation sector remains the largest contributor to US emissions for the third year in a row. In the buildings sector, the reports states emissions come from commercial and residential buildings, a result of fuel oil and natural gas from cooking and heating. While this appears to be good news, power sector emissions overall increased by 1.9 percent, according to the estimates.
"We expect it to overtake power as the second leading source of emissions in California by 2020 and to become the leading source of emissions in Texas by 2022", the report states.More news: Elon Musk called the launch date of Dragon-2 to the ISS