Land

Manmade

Worldometer
It costs 10 cents in feed per laying chicken per day assuming no foraging - [3]. There is an added cost of 22 weeks until laying age.
Max current genetics of hazel crop - 3000 lb/acre dry kernel + 5000 lb shell (fuel) - 49:48 of [4] - 10 lb/plant
Average USA corn crop - 8000 lb - [5]
Average USA soybean crop - 2700 lb - [6]
USA average soil erosion is 5 tons per acre for agricultural land - [7]
Approximately 10 million acres of cropland are lost every year due to erosion (a square more than 100 miles on the side), or 4- [8]
36 billion acres of land on earth - [9]
total biomass yield of USA provides almost 2x the USA use of gasoline equivalent from biomass to gasoline and fuel char for gasifier engine - https://www.soils.org/files/am/ecosystems/kinght.pdf
total land and sea area to cover food needs per person - 1.7 acres.http://www.footprintnetwork.org/pt/index.php/GFN/page/living_planet_report_2014_facts/
arable land usa - .5 ha/person
World Military Spending - $1.7T
US GDP - $17T, and Government Budget- $7T
World GDP - or GWP - $85T
World energy use - 144 PWhr
USA Military Spending - $640B - $2k per capita spending

$40B organics market - http://www.ers.usda.gov/topics/natural-resources-environment/organic-agriculture/organic-market-overview.aspx. That makes it
Annual sustainable forest yield of 12.5B cubic meters or 105 exajoules - [11], p. 615

Total USA energy use - 25 PWhr - [13] - (petawatt hours (See Metric Prefixes))
Equivalent to 90 exajoules, consistent with Renewable Energy "Blue Bible" above.

250GW of PV is installable on existing rooftops - Cosservative estimate (50% of residential rooftops) - [14]

Per year, let's take average insolation as 6 hours per day * 365 days - or 550 TWhr per year. That is 2% of USA's energy use, or 5% of USA's electric use. This is JUST RESIDENTIAL ROOFTOPS. Needs to add commercial rooftops, parking lots, roadway medians.

USA road density - 67 km/ 100 sq km of area - [15]
USA area - 10 million sq km
USA roads - 6.7 million km. Assume an average road is 2 lane with shoulder - each lane has 12 foot (3.7m) standard in the USA - [16] - or an area of about 100,000 sq km. This could power 1/4 of the world's energy needs (oil, nukes, solar)
Area required to power all of the world with PV is 400,000 sq km - [17]
Total forest area of the world - 4 billion hectares - [18] - 30% of land area of world.
Total farmland area worldwide -
Total land area - 150M sq km - google
Total agriculture land - 33% of world land according to FAO - [19]
Energy per capita US vs Switzerland - As an indicator, the average energy use per person is 12,000 watts in the USA but only 3,000 in the Switzerland - [20]
Percentage of USA energy by source. Coal electricity is 40% - [21]
Half of USA rooftops could replace all coal electricity in the USA - [22]
World electricity production 2009 - 20PWh - [23]
Area of all cities compared to world land area - 0.5% - [24] - or 750,000 sq km.

Given $1200/year battery costs of Tesla Model S, cost of fuel or electricity is $1700 - no savings - between the electric and regular fuel option approximately at the 15,000 mile per year mark - according to cost calculator at [29]
Lithium Ion batteries - predicted to go down to under $200/kWh -[30]
Nickel-Iron battery energy density - 50Wh/kg - [31]

EVs could replace 75% of petroleum fuel - [35]
Materials cost for a 18650 cell (Lithium Ion) is $1.25 (about 4W) - [36]
Lithium is $40/lb - [37]
According to this source - [38] - we have 100 years of nickel reserves, nad 200 years of iron and aluminum.
Nickel - $6/lb
Iron - 20 cents/lb

Sustainable Energy Without the Hot Air - [39]
Paper on Lithium Ion vs. fuel cars - LCA - using E199 and Total Beauty frameworks. We can make a case for a much higher Total Beauty Framework using renewable fuel (charcoal) - [40]