2043: The Year of the Great Algae Bloom (and Surprisingly Delicious Seaweed Burgers)

By 2043, coastal cities will be sporting stylish, yet surprisingly effective, algae-based seawalls, a testament to our newfound appreciation for microscopic marine life. Meanwhile, seaweed burgers, once a niche culinary oddity, will be a global fast-food staple, proving that fighting climate change can actually be quite tasty (and surprisingly profitable for seaweed farmers who’ve cleverly avoided the rising tides). The only downside? Finding a parking spot near the beach will be even more challenging than it is today.