The US is causing #GlobalWarming through excessive #CO2 #emissions: The #CarbonFootprint, which equals CF per person multiplied by #population, of the current (2016) US population of 323 million uses the carbon sequestration capacity of 3.7 Americas. 
The maximum #sustainable (“#CarbonNeutral”) #population at our current CF per person is only 87 million. The maximum that would maintain our current #QualityOfLife, as measured by the UN’s #HumanDevelopmentIndex, is only 195 million.
Since the start of CF tracking (1961), 91% of our #growth in CF has been caused by #population growth and only 9% by growth in personal #emissions (CF per person).
Projecting the same decreases in CF per person and in carbon sequestration capacity (forest lands) since 2010 forward to 2060, the CF will be smaller but will still use 1.5 Americas. It would be even smaller if not for projected #population #growth to 404 million.
And that projected #population #growth excludes the tens of millions of additional #immigrants that would result from the #immigration policies being proposed by #JoeBiden and the #DemocraticParty.
We could become #CarbonNeutral by 2060 if we voluntarily reduce our #population to its 2000 size of 282 million. That means reducing our annual total (legal and illegal) #immigration to no more than a “replacement rate” (zero net immigration) level (an “#ImmigrationMoratorium”).
We have an overdue moral obligation to our descendants to stop and ultimately reverse our #population #growth, which, with #fertility being at or below replacement level since 1972, is almost entirely caused by #immigration, until our country is #CarbonNeutral.
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