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Here’s a few things that also put go to into that atmosphere.

1. Volcanic eruptions
2. Wildfires
3. Decomposition of organic matter in forests
4. Decomposition of organic matter in wetlands
5. Ocean outgassing (release of CO2 from seawater)
6. Methane emissions from wetlands
7. Methane emissions from termites
8. Methane emissions from ruminant animals (cattle, sheep)
9. Soil respiration (CO2 released by soil microorganisms)
10. Respiration of plants and trees
11. Emissions from volcanic hot springs
12. Geothermal activity
13. Natural gas seeps
14. Emissions from peatlands
15. Methane hydrates release
16. Carbon release from permafrost thawing
17. Natural forest disturbances (e.g., storms)
18. Carbon release from thawing tundra
19. Methane emissions from rice paddies
20. Carbon emissions from algae blooms
21. Decay of dead coral reefs
22. Emissions from termite mounds
23. Carbon release from submerged vegetation
24. Methane emissions from freshwater bodies
25. Emissions from subsea methane seeps
26. Carbon release from karst landscapes
27. Respiration of savannah grasses
28. Decomposition of leaves in tropical rainforests
29. Emissions from coastal erosion
30. Carbon release from riverbank erosion
31. Emissions from beaver ponds
32. Decay of submerged aquatic plants
33. Carbon release from land subsidence
34. Emissions from underground coal fires
35. Degassing of CO2 from volcanic lakes
36. Carbon release from desertification
37. Decomposition of fallen fruit
38. Emissions from salt marshes
39. Methane emissions from swamps
40. Carbon release from percolating groundwater
41. Emissions from subglacial volcanoes
42. Decomposition of kelp and seaweed
43. Emissions from cold seeps in the ocean
44. Carbon release from river deltas
45. Methane emissions from sediments
46. Decomposition of lichens and mosses
47. Emissions from subglacial melting
48. Carbon release from termite nests
49. Emissions from windblown dust
50. Decomposition of plant debris in deserts