Which nature conservation organization changed its iconic logo in 2021 specifically to highlight the effects of climate change?

Test your knowledge of famous environmental product logos and their evolution! In today's eco-conscious marketplace, many brands are adapting their visual identities to reflect environmental commitments. This poll challenges you to identify which major nature-focused organization underwent a significant logo redesign specifically to address climate change awareness. Only true marketing and environmental enthusiasts will know the correct answer!

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World Wildlife Fund (WWF) - altered its panda logo to show melting ice beneath it
The National Audubon Society - modified its bird silhouette to appear thinner, representing declining bird populations
Polar Bears International - updated its logo to show a polar bear on a smaller ice floe than in previous versions
The Nature Conservancy - added rising water lines to its leaf logo to symbolize sea level rise