Synergy Puzzle 4

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Across
  1. 1. Saudi Arabia's national oil and gas company
  2. 5. A refinery product that is used as transportation fuel
  3. 9. An indicator of an individual or population's required source of land and water to sustain an activity
  4. 11. A device that stores energy from solar arrays or the electric grid
  5. 13. Discrimination and injustice that occur in environmental policy making and practices
  6. 14. The measurement system determines the level of air pollution by tracking air pollutants
  7. 15. The country where the first borehole is opened to use by rotary drilling
  8. 16. A type of renewable energy source which comes from heat within the Earth's core
  9. 17. The situation when there is a bottleneck in the supply of an energy resource.
  10. 19. A tax to reduce emissions based on the carbon content of the fossil fuel consumed.
  11. 20. Swedish young environmental activist who states the urgency of combating climate change
Down
  1. 2. Integrating digital technologies to increase efficiency, reliability and sustainability into energy systems in British English
  2. 3. The country which has the largest crude oil capacity
  3. 4. A foundation that aims to support member states in the peaceful use and planning of nuclear science
  4. 6. A pioneer of alternating current, which reduces the cost of transmitting electricity over long distances
  5. 7. The unit for a barrel of crude oil
  6. 8. The property of crude oil that the sulphur density is high
  7. 10. The class of energy sources extracted directly from natural sources that do not undergo any transformation
  8. 12. The thrown away electronic goods that cause an environmental problem
  9. 18. An abbreviation of a universal call of the UN for obtaining sustainable development