The horizontal lines visualise the predicted Sea level rise. Similar to a ruler that displays centimeters. The 4 highlighted lines represent the rise of 7 cm in 2020, 12cm in 2030, 17cm in 2040, 22 cm in 2050. These numbers are based on the most ideal emission scenario (RCP 2.8) according to Paris Climate Agreement. The data is based on the climate report of IPCC (Intergovernmental Panel on Climate Change).
Sea Level Socks are part of Temperature Textiles Produced in Europe