Counties most concerned about climate change in California

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Nationally, 72% of Americans believe global warming is happening. But when public opinion researchers zoom in on Americans, they find that attitudes and opinions about climate change can vary drastically from county to county—even when those counties are next door. Public opinion factors into how policy-makers respond to climate change, including taking steps to reduce CO2 levels and mitigate harmful impacts already being experienced. Stacker compiled a list of counties most concerned about climate change in California using data from the Yale Program on Climate Change Communication. Counties are ranked by the percent of residents that are worried about global warming.

#58. Lassen County

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#58. Lassen County

- Worried about global warming: 56.3%
--- 13.8% lower than California average
- Agree that global warming is affecting weather: 56.7%
- Think global warming will harm them personally: 41.6%
- Hear about global warming in the media at least weekly: 32.6%
- Think Congress should be doing more to address global warming: 53.3%
- Total population: 26,216 people
#57. Tuolumne County

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#57. Tuolumne County

- Worried about global warming: 57.5%
--- 12.6% lower than California average
- Agree that global warming is affecting weather: 58.6%
- Think global warming will harm them personally: 41.1%
- Hear about global warming in the media at least weekly: 34.8%
- Think Congress should be doing more to address global warming: 54.1%
- Total population: 45,057 people
#56. Shasta County

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#56. Shasta County

- Worried about global warming: 57.9%
--- 12.2% lower than California average
- Agree that global warming is affecting weather: 56.8%
- Think global warming will harm them personally: 39.8%
- Hear about global warming in the media at least weekly: 35.4%
- Think Congress should be doing more to address global warming: 54.2%
- Total population: 140,533 people
#55. Tehama County

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#55. Tehama County

- Worried about global warming: 59.9%
--- 10.2% lower than California average
- Agree that global warming is affecting weather: 57.8%
- Think global warming will harm them personally: 42.2%
- Hear about global warming in the media at least weekly: 33.8%
- Think Congress should be doing more to address global warming: 55.0%
- Total population: 48,651 people
#54. Modoc County

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#54. Modoc County

- Worried about global warming: 60.0%
--- 10.1% lower than California average
- Agree that global warming is affecting weather: 59.3%
- Think global warming will harm them personally: 43.3%
- Hear about global warming in the media at least weekly: 37.7%
- Think Congress should be doing more to address global warming: 56.4%
- Total population: 7,154 people
#53. Sierra County

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#53. Sierra County

- Worried about global warming: 60.5%
--- 9.7% lower than California average
- Agree that global warming is affecting weather: 61.7%
- Think global warming will harm them personally: 43.0%
- Hear about global warming in the media at least weekly: 40.2%
- Think Congress should be doing more to address global warming: 57.2%
- Total population: 2,559 people
#52. Calaveras County

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#52. Calaveras County

- Worried about global warming: 60.6%
--- 9.5% lower than California average
- Agree that global warming is affecting weather: 61.0%
- Think global warming will harm them personally: 43.0%
- Hear about global warming in the media at least weekly: 37.1%
- Think Congress should be doing more to address global warming: 57.8%
- Total population: 37,701 people
#51. Glenn County

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#51. Glenn County

- Worried about global warming: 61.5%
--- 8.7% lower than California average
- Agree that global warming is affecting weather: 59.9%
- Think global warming will harm them personally: 45.8%
- Hear about global warming in the media at least weekly: 32.5%
- Think Congress should be doing more to address global warming: 56.0%
- Total population: 20,489 people
#50. Amador County

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#50. Amador County

- Worried about global warming: 61.8%
--- 8.3% lower than California average
- Agree that global warming is affecting weather: 62.2%
- Think global warming will harm them personally: 43.0%
- Hear about global warming in the media at least weekly: 36.9%
- Think Congress should be doing more to address global warming: 57.8%
- Total population: 32,581 people
#49. Yuba County

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#49. Yuba County

- Worried about global warming: 62.4%
--- 7.8% lower than California average
- Agree that global warming is affecting weather: 61.6%
- Think global warming will harm them personally: 45.6%
- Hear about global warming in the media at least weekly: 33.8%
- Think Congress should be doing more to address global warming: 57.4%
- Total population: 55,281 people
#48. El Dorado County

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#48. El Dorado County

- Worried about global warming: 62.9%
--- 7.2% lower than California average
- Agree that global warming is affecting weather: 62.5%
- Think global warming will harm them personally: 43.4%
- Hear about global warming in the media at least weekly: 39.8%
- Think Congress should be doing more to address global warming: 57.0%
- Total population: 150,641 people
#47. Plumas County

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#47. Plumas County

- Worried about global warming: 63.0%
--- 7.1% lower than California average
- Agree that global warming is affecting weather: 63.1%
- Think global warming will harm them personally: 42.6%
- Hear about global warming in the media at least weekly: 39.7%
- Think Congress should be doing more to address global warming: 59.0%
- Total population: 15,543 people
#46. Sutter County

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#46. Sutter County

- Worried about global warming: 63.3%
--- 6.9% lower than California average
- Agree that global warming is affecting weather: 61.7%
- Think global warming will harm them personally: 46.8%
- Hear about global warming in the media at least weekly: 32.6%
- Think Congress should be doing more to address global warming: 57.3%
- Total population: 71,049 people
#45. Kern County

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#45. Kern County

- Worried about global warming: 63.4%
--- 6.7% lower than California average
- Agree that global warming is affecting weather: 60.5%
- Think global warming will harm them personally: 46.9%
- Hear about global warming in the media at least weekly: 31.4%
- Think Congress should be doing more to address global warming: 58.6%
- Total population: 629,553 people
#44. Placer County

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#44. Placer County

- Worried about global warming: 63.7%
--- 6.4% lower than California average
- Agree that global warming is affecting weather: 66.2%
- Think global warming will harm them personally: 43.9%
- Hear about global warming in the media at least weekly: 38.4%
- Think Congress should be doing more to address global warming: 58.1%
- Total population: 299,181 people
#43. Del Norte County

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#43. Del Norte County

- Worried about global warming: 63.9%
--- 6.2% lower than California average
- Agree that global warming is affecting weather: 63.1%
- Think global warming will harm them personally: 46.4%
- Hear about global warming in the media at least weekly: 35.0%
- Think Congress should be doing more to address global warming: 59.6%
- Total population: 21,575 people
#42. Trinity County

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#42. Trinity County

- Worried about global warming: 63.9%
--- 6.2% lower than California average
- Agree that global warming is affecting weather: 65.3%
- Think global warming will harm them personally: 46.1%
- Hear about global warming in the media at least weekly: 41.7%
- Think Congress should be doing more to address global warming: 61.1%
- Total population: 10,534 people
#41. Mariposa County

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#41. Mariposa County

- Worried about global warming: 64.3%
--- 5.8% lower than California average
- Agree that global warming is affecting weather: 65.3%
- Think global warming will harm them personally: 47.1%
- Hear about global warming in the media at least weekly: 44.3%
- Think Congress should be doing more to address global warming: 60.4%
- Total population: 14,578 people
#40. Butte County

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#40. Butte County

- Worried about global warming: 65.2%
--- 5.0% lower than California average
- Agree that global warming is affecting weather: 64.9%
- Think global warming will harm them personally: 45.2%
- Hear about global warming in the media at least weekly: 39.0%
- Think Congress should be doing more to address global warming: 58.9%
- Total population: 180,380 people
#39. Siskiyou County

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#39. Siskiyou County

- Worried about global warming: 65.5%
--- 4.7% lower than California average
- Agree that global warming is affecting weather: 65.3%
- Think global warming will harm them personally: 44.6%
- Hear about global warming in the media at least weekly: 38.7%
- Think Congress should be doing more to address global warming: 62.3%
- Total population: 34,638 people
#38. Colusa County

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#38. Colusa County

- Worried about global warming: 65.9%
--- 4.2% lower than California average
- Agree that global warming is affecting weather: 61.6%
- Think global warming will harm them personally: 48.9%
- Hear about global warming in the media at least weekly: 32.2%
- Think Congress should be doing more to address global warming: 60.6%
- Total population: 15,609 people
#37. Kings County

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#37. Kings County

- Worried about global warming: 66.1%
--- 4.1% lower than California average
- Agree that global warming is affecting weather: 63.0%
- Think global warming will harm them personally: 50.5%
- Hear about global warming in the media at least weekly: 32.7%
- Think Congress should be doing more to address global warming: 60.8%
- Total population: 109,655 people
#36. Nevada County

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#36. Nevada County

- Worried about global warming: 66.5%
--- 3.6% lower than California average
- Agree that global warming is affecting weather: 67.2%
- Think global warming will harm them personally: 45.3%
- Hear about global warming in the media at least weekly: 43.4%
- Think Congress should be doing more to address global warming: 62.6%
- Total population: 82,142 people
#35. San Luis Obispo County

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#35. San Luis Obispo County

- Worried about global warming: 68.0%
--- 2.1% lower than California average
- Agree that global warming is affecting weather: 67.5%
- Think global warming will harm them personally: 47.2%
- Hear about global warming in the media at least weekly: 41.9%
- Think Congress should be doing more to address global warming: 65.5%
- Total population: 231,986 people
#34. Inyo County

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#34. Inyo County

- Worried about global warming: 68.2%
--- 2.0% lower than California average
- Agree that global warming is affecting weather: 67.2%
- Think global warming will harm them personally: 49.2%
- Hear about global warming in the media at least weekly: 41.3%
- Think Congress should be doing more to address global warming: 62.6%
- Total population: 14,368 people
#33. Stanislaus County

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#33. Stanislaus County

- Worried about global warming: 68.4%
--- 1.8% lower than California average
- Agree that global warming is affecting weather: 64.7%
- Think global warming will harm them personally: 51.0%
- Hear about global warming in the media at least weekly: 31.9%
- Think Congress should be doing more to address global warming: 63.9%
- Total population: 395,573 people
#32. Lake County

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#32. Lake County

- Worried about global warming: 68.4%
--- 1.8% lower than California average
- Agree that global warming is affecting weather: 68.1%
- Think global warming will harm them personally: 48.2%
- Hear about global warming in the media at least weekly: 40.1%
- Think Congress should be doing more to address global warming: 65.6%
- Total population: 50,793 people
#31. Tulare County

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#31. Tulare County

- Worried about global warming: 68.8%
--- 1.3% lower than California average
- Agree that global warming is affecting weather: 67.3%
- Think global warming will harm them personally: 52.0%
- Hear about global warming in the media at least weekly: 31.9%
- Think Congress should be doing more to address global warming: 62.4%
- Total population: 318,744 people
#30. Solano County

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#30. Solano County

- Worried about global warming: 68.9%
--- 1.2% lower than California average
- Agree that global warming is affecting weather: 68.7%
- Think global warming will harm them personally: 49.5%
- Hear about global warming in the media at least weekly: 34.8%
- Think Congress should be doing more to address global warming: 64.4%
- Total population: 342,993 people
#29. Orange County

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#29. Orange County

- Worried about global warming: 69.0%
--- 1.1% lower than California average
- Agree that global warming is affecting weather: 67.6%
- Think global warming will harm them personally: 52.6%
- Hear about global warming in the media at least weekly: 36.2%
- Think Congress should be doing more to address global warming: 63.5%
- Total population: 2,463,536 people
#28. Sacramento County

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#28. Sacramento County

- Worried about global warming: 69.1%
--- 1.0% lower than California average
- Agree that global warming is affecting weather: 67.8%
- Think global warming will harm them personally: 51.4%
- Hear about global warming in the media at least weekly: 35.8%
- Think Congress should be doing more to address global warming: 65.1%
- Total population: 1,161,377 people
#27. San Diego County

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#27. San Diego County

- Worried about global warming: 69.7%
--- 0.4% lower than California average
- Agree that global warming is affecting weather: 65.6%
- Think global warming will harm them personally: 50.0%
- Hear about global warming in the media at least weekly: 38.2%
- Think Congress should be doing more to address global warming: 61.5%
- Total population: 2,593,337 people
#26. Ventura County

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#26. Ventura County

- Worried about global warming: 69.8%
--- 0.3% lower than California average
- Agree that global warming is affecting weather: 70.1%
- Think global warming will harm them personally: 50.0%
- Hear about global warming in the media at least weekly: 36.4%
- Think Congress should be doing more to address global warming: 61.0%
- Total population: 650,477 people
#25. Madera County

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#25. Madera County

- Worried about global warming: 69.9%
--- 0.3% lower than California average
- Agree that global warming is affecting weather: 65.2%
- Think global warming will harm them personally: 50.2%
- Hear about global warming in the media at least weekly: 32.9%
- Think Congress should be doing more to address global warming: 62.8%
- Total population: 112,581 people
#24. San Joaquin County

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#24. San Joaquin County

- Worried about global warming: 69.9%
--- 0.3% lower than California average
- Agree that global warming is affecting weather: 67.1%
- Think global warming will harm them personally: 51.5%
- Hear about global warming in the media at least weekly: 31.9%
- Think Congress should be doing more to address global warming: 67.8%
- Total population: 539,901 people
#23. Mendocino County

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#23. Mendocino County

- Worried about global warming: 70.1%
--- 0.1% lower than California average
- Agree that global warming is affecting weather: 69.9%
- Think global warming will harm them personally: 50.7%
- Hear about global warming in the media at least weekly: 39.7%
- Think Congress should be doing more to address global warming: 64.6%
- Total population: 68,523 people
#22. Riverside County

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#22. Riverside County

- Worried about global warming: 70.8%
--- 0.7% higher than California average
- Agree that global warming is affecting weather: 65.1%
- Think global warming will harm them personally: 50.8%
- Hear about global warming in the media at least weekly: 34.6%
- Think Congress should be doing more to address global warming: 60.8%
- Total population: 1,797,289 people
#21. Mono County

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#21. Mono County

- Worried about global warming: 70.9%
--- 0.7% higher than California average
- Agree that global warming is affecting weather: 70.6%
- Think global warming will harm them personally: 51.8%
- Hear about global warming in the media at least weekly: 44.5%
- Think Congress should be doing more to address global warming: 66.3%
- Total population: 11,659 people
#20. Merced County

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#20. Merced County

- Worried about global warming: 71.0%
--- 0.9% higher than California average
- Agree that global warming is affecting weather: 68.3%
- Think global warming will harm them personally: 53.8%
- Hear about global warming in the media at least weekly: 31.3%
- Think Congress should be doing more to address global warming: 64.2%
- Total population: 190,920 people
#19. Humboldt County

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#19. Humboldt County

- Worried about global warming: 71.3%
--- 1.1% higher than California average
- Agree that global warming is affecting weather: 72.1%
- Think global warming will harm them personally: 48.8%
- Hear about global warming in the media at least weekly: 42.2%
- Think Congress should be doing more to address global warming: 66.4%
- Total population: 109,804 people
#18. San Bernardino County

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#18. San Bernardino County

- Worried about global warming: 71.3%
--- 1.2% higher than California average
- Agree that global warming is affecting weather: 68.2%
- Think global warming will harm them personally: 53.9%
- Hear about global warming in the media at least weekly: 32.3%
- Think Congress should be doing more to address global warming: 66.6%
- Total population: 1,577,460 people
#17. Napa County

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#17. Napa County

- Worried about global warming: 72.1%
--- 2.0% higher than California average
- Agree that global warming is affecting weather: 70.6%
- Think global warming will harm them personally: 51.2%
- Hear about global warming in the media at least weekly: 38.8%
- Think Congress should be doing more to address global warming: 68.2%
- Total population: 110,423 people
#16. San Benito County

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#16. San Benito County

- Worried about global warming: 72.2%
--- 2.0% higher than California average
- Agree that global warming is affecting weather: 69.0%
- Think global warming will harm them personally: 51.5%
- Hear about global warming in the media at least weekly: 33.4%
- Think Congress should be doing more to address global warming: 64.4%
- Total population: 44,697 people
#15. Alpine County

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#15. Alpine County

- Worried about global warming: 72.3%
--- 2.2% higher than California average
- Agree that global warming is affecting weather: 71.3%
- Think global warming will harm them personally: 52.8%
- Hear about global warming in the media at least weekly: 43.3%
- Think Congress should be doing more to address global warming: 66.9%
- Total population: 835 people
#14. Sonoma County

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#14. Sonoma County

- Worried about global warming: 73.0%
--- 2.9% higher than California average
- Agree that global warming is affecting weather: 71.4%
- Think global warming will harm them personally: 52.7%
- Hear about global warming in the media at least weekly: 41.1%
- Think Congress should be doing more to address global warming: 68.5%
- Total population: 400,580 people
#13. Fresno County

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#13. Fresno County

- Worried about global warming: 73.4%
--- 3.2% higher than California average
- Agree that global warming is affecting weather: 67.7%
- Think global warming will harm them personally: 55.2%
- Hear about global warming in the media at least weekly: 33.1%
- Think Congress should be doing more to address global warming: 60.1%
- Total population: 703,679 people
#12. Santa Barbara County

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#12. Santa Barbara County

- Worried about global warming: 73.5%
--- 3.4% higher than California average
- Agree that global warming is affecting weather: 72.5%
- Think global warming will harm them personally: 54.5%
- Hear about global warming in the media at least weekly: 42.0%
- Think Congress should be doing more to address global warming: 67.6%
- Total population: 345,645 people
#11. Contra Costa County

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#11. Contra Costa County

- Worried about global warming: 73.9%
--- 3.8% higher than California average
- Agree that global warming is affecting weather: 75.5%
- Think global warming will harm them personally: 55.8%
- Hear about global warming in the media at least weekly: 42.0%
- Think Congress should be doing more to address global warming: 66.8%
- Total population: 881,047 people
#10. Los Angeles County

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#10. Los Angeles County

- Worried about global warming: 74.1%
--- 4.0% higher than California average
- Agree that global warming is affecting weather: 71.2%
- Think global warming will harm them personally: 59.3%
- Hear about global warming in the media at least weekly: 36.3%
- Think Congress should be doing more to address global warming: 64.9%
- Total population: 7,866,812 people
#9. Marin County

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#9. Marin County

- Worried about global warming: 74.6%
--- 4.5% higher than California average
- Agree that global warming is affecting weather: 74.4%
- Think global warming will harm them personally: 53.5%
- Hear about global warming in the media at least weekly: 48.8%
- Think Congress should be doing more to address global warming: 70.3%
- Total population: 207,311 people
#8. Monterey County

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#8. Monterey County

- Worried about global warming: 74.6%
--- 4.5% higher than California average
- Agree that global warming is affecting weather: 71.3%
- Think global warming will harm them personally: 54.4%
- Hear about global warming in the media at least weekly: 36.8%
- Think Congress should be doing more to address global warming: 68.4%
- Total population: 319,541 people
#7. Yolo County

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#7. Yolo County

- Worried about global warming: 74.7%
--- 4.6% higher than California average
- Agree that global warming is affecting weather: 74.2%
- Think global warming will harm them personally: 54.6%
- Hear about global warming in the media at least weekly: 41.2%
- Think Congress should be doing more to address global warming: 69.4%
- Total population: 171,327 people
#6. Santa Cruz County

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#6. Santa Cruz County

- Worried about global warming: 75.1%
--- 4.9% higher than California average
- Agree that global warming is affecting weather: 75.2%
- Think global warming will harm them personally: 54.9%
- Hear about global warming in the media at least weekly: 43.6%
- Think Congress should be doing more to address global warming: 74.6%
- Total population: 220,842 people
#5. Imperial County

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#5. Imperial County

- Worried about global warming: 75.1%
--- 4.9% higher than California average
- Agree that global warming is affecting weather: 71.4%
- Think global warming will harm them personally: 56.4%
- Hear about global warming in the media at least weekly: 30.6%
- Think Congress should be doing more to address global warming: 69.4%
- Total population: 128,844 people
#4. Santa Clara County

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#4. Santa Clara County

- Worried about global warming: 76.3%
--- 6.2% higher than California average
- Agree that global warming is affecting weather: 77.0%
- Think global warming will harm them personally: 56.8%
- Hear about global warming in the media at least weekly: 37.8%
- Think Congress should be doing more to address global warming: 71.0%
- Total population: 1,499,088 people
#3. San Mateo County

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#3. San Mateo County

- Worried about global warming: 78.1%
--- 8.0% higher than California average
- Agree that global warming is affecting weather: 77.8%
- Think global warming will harm them personally: 55.0%
- Hear about global warming in the media at least weekly: 42.4%
- Think Congress should be doing more to address global warming: 73.2%
- Total population: 607,917 people
#2. Alameda County

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#2. Alameda County

- Worried about global warming: 80.7%
--- 10.5% higher than California average
- Agree that global warming is affecting weather: 77.6%
- Think global warming will harm them personally: 59.6%
- Hear about global warming in the media at least weekly: 42.4%
- Think Congress should be doing more to address global warming: 75.6%
- Total population: 1,312,727 people
#1. San Francisco

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#1. San Francisco

- Worried about global warming: 80.9%
--- 10.8% higher than California average
- Agree that global warming is affecting weather: 78.7%
- Think global warming will harm them personally: 58.8%
- Hear about global warming in the media at least weekly: 45.3%
- Think Congress should be doing more to address global warming: 76.4%
- Total population: 757,416 people