As You Can See, Maryland is not the Problem or the Solution.   

World CO2 Emissions:

The World's CO2 Emissions Currently Stands at Approximately 48.9 BILLION METRIC TONS or 48,939,710,000 Metric Tons.  

China Produces
.23918838096 of the Worlds CO2 Emissions or 23.91%
The US Produces
.11839771833 of the Worlds CO2 Emissions or 11.83%
Maryland Produces
.00123621492 of the Worlds CO2 Emissions or 0.12%

China CO2 Emissions:

China Currently releases approximately 11,705,810,000 Metric Tons of CO2 a year. That accounts for 23.91% of the Worlds CO2 Emissions.
China's CO2 emissions rose by 1.7% last year while emissions from almost all other countries declined.
China's GHG exceeded those of the US and the Developed Nations Combined.
China continues to build coal plants but has pledged to make sure their emissions peak by 2030.
Yes, you read that right, China states that their CO2 emissions are going to continue to rise until 2030.

U.S. CO2 Emissions:

The United States Currently Releases Approximately 5,794,350,000 Metric Tons of CO2 a year. That accounts for 11.83% of the Worlds CO2 Emissions.
At the most recent Climate Summit, President Biden made a lofty promise. He has vowed to to reduce U.S. emissions by 50-52% by 2030, more than doubling the U.S's prior commitment under the 2015 Paris climate agreement. 2030 is only 7 years away.

Maryland CO2 Emissions:

Maryland produces only .00123621492 of the Worlds CO2 Emissions. That is a little over 1/10th of 1%.
If Maryland Reduced CO2 Emissions by 100 %, the United States would still produce 11% of the Worlds CO2 Emissions.
Currently The United States Produces 11.83% of the Worlds CO2 Emissions.

IF Maryland Reduced CO2 Emissions by 100%, The United States Total CO2 Emissions would drop from 11.83% to 11.71%.
As you can see, Maryland is not the Problem or the Solution.