The human chain started at Alderdi Eder from 11:00 in the morning. From there they went down to the beach of La Concha, with banners and posters carrying claims against the incinerator. Once the regatta had been finalized, the mobilisation in Alderdi Eder ended.

The Anti-Incinerator Movement organized the human chain with the support of other actors. Information on the incinerator of Zubieta and the incinerator of Zubieta was made available by a letter from the organisation. In this year’s protest, the Police wanted to link incineration with climate change.

Anti-incineration militants began their action around 9:00 in the morning, deploying a giant banner in a corner of La Concha beach before the regattas. This year, however, the municipal agents of Donostia withdrew the banner, thus preventing the images of the helicopter from seeing the complaint against the Zubieta incinerator.

However, police pressure did not end there, activists have denounced. After the end of the human chain with the regatta, the members of EAM showed their claim to the city council, in the public welcome to the champions of Arraun Laguna by the local authorities and in which the agents of the Ertzaintza street dresses identified the protestants.

The Anti-Incineration Movement has highlighted in the mobilisation of 2021 that the Zubieta incinerator drives climate change. According to the statement made by the neighbours, the Zubieta incinerator generates one kilo of CO2 per kilo of waste generated. If it were in full operation, it would emit 200,000 tonnes of CO2. The movement says they don't have data from Zubieta and they've given those from Bizkaia: In 2019, the Bizkaia incinerator emitted 340,000 kilos of nitrogen oxide, equivalent to the discharge of all diesel tourism in Gipuzkoa. They regret that, even knowing that gas emissions have such an effect on climate change, the installation of Zubieta is called the Gipuzkoa Environmental Complex.

The San Sebastian incinerator has capacity to burn 200,000 tonnes of waste per year and in 2020 132,000 rejections were generated in Gipuzkoa. According to the paper, from the CMT, several materials were recovered and humidity was eliminated, so they remained at less than 100,000 tons. According to the Movement, these data demonstrate from the outset that one of the two ovens is spare and that the authorities intend to burn industrial waste in order to keep the ovens in operation.