Despite the clear and obvious threat we face from it, climate change can be difficult for a lot of folks to observe on a day to day basis. The process can be simultaneously slow in some places and blisteringly fast in others.
Here are 28 pictures that show just how much damage has already been done:
1. Pederson Glacier, Alaska then:

2. Pedersen Glacier now:

3. Coral reefs in American Somoa then:

4. Coral reefs in American Somoa now:

5. Northwestern Glacier, Alaska then:

6. Northwestern Glacier now:

7. Muir Glacier, Alaska then:

8. Muir Glacier now:

9. Carroll Glacier, Alaska then:

10. Carroll Glacier now:

13. McCarty Glacier, Alaska then:

14. McCarty Glacier now:

16. Muir Glacier, Alaska then:

17. Muir Glacier now:

20. Okpilak Glacier, Alaska then:

21. Okpilak Glacier now:

24. The Great Barrier Reef then and now:
Great Barrier Reef - Before & After
25. Bear Glacier, Alaska then:

26. Bear Glacier now:

27. Coral around Lizard Island, Australia then:

28. Coral around Lizard Island now:
