Greta Thunberg, climate and humanitarian activist
On June 1, 2025, the Madleen, a ship organized by the Freedom Flotilla Coalition to deliver humanitarian aid to the Gaza Strip, departed from Catania, Italy. It carries supplies such as water bottles, medical equipment, and other essential items. The goal of the mission is to break through Israel’s naval blockade and deliver aid to civilians in Gaza. The flotilla includes 12 participants from various countries. Some participants include members of the European Parliament, actors, and activists. The most high-profile figure on board may be Greta Thunberg.
Thunberg, a Swedish-born climate activist, describes the mission as aligning with her environmental and humanitarian values. She asserts that the mission reflects her beliefs that environmental justice must include all communities.
Thunberg has recently been an active participant in the youth-led, global “Free Palestine” movement. While the journey has drawn international media attention due to Thunberg’s highly controversial image, it also intersects with a long-standing, complex, and regional conflict—one where humanitarian concerns, national security, and environmental challenges collide.
Israel has enforced a naval blockade on the Gaza Strip since 2007 due to concerns related to Hamas. Hamas, a terrorist organization, attacked Israel on October 7, 2023, killing more than 1,200 innocent Israeli civilians and taking over 250 hostage. The blockade is supported by other nations in the region, such as Egypt. It is utilized to prevent weapons and materials that could be used for military purposes from entering the territory. Israel allows aid to enter Gaza through land crossings, which are coordinated and monitored by international agencies.
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Those who are critical of the blockade, including Thunberg and her companions, argue that the embargo contributes to deteriorating living and environmental conditions in Gaza. Supporters of the blockade assert that it is essential for the security of Israel and the safety of its civilians. Additionally, they claim internal mismanagement and a lack of cooperation from Hamas limit the support that civilians receive. Gaza is facing significant environmental challenges. There are reports that 90% of the water is undrinkable. This is due to the ongoing war, governance challenges, and the over-extraction and contamination of aquifers.
Wastewater runs rampant due to untreated sewage being discharged directly into the Mediterranean Sea and other water sources. While the Israeli blockade is often cited as the most significant factor contributing to these challenges, many international commentators and agencies have also pointed to Hamas and its recent efforts to disrupt aid distribution as a substantial factor.
In the past, infrastructure projects, including water treatment facilities and solar energy systems, many of which came from Israel, have been disrupted by a lack of cooperation between the Palestinian Authority and Hamas.
Greta Thunberg’s decision to participate in the Madleen voyage highlights the issue of environmental justice in conflict zones. It also reflects the growing trend of climate activism, which involves engaging in politically sensitive regions.
From Israel’s perspective, the debate is distinguishing between humanitarianism and efforts that legitimize terrorist organizations such as Hamas. Despite concerns, Israel has continued to permit and facilitate the transfer of aid, including food, fuel, water, and medical supplies, through its land crossings.
As the Madleen moves closer to Gaza’s waters, the following steps are uncertain. Previous flotillas have been intercepted and redirected to Ashdod Port, where the cargo is examined and transferred to Gaza via official land crossing channels. The IDF, Israel Defense Forces, recently issued a statement to the press. IDF Spokesperson Effie Defrin said, “The (Israeli military) is prepared to defend the citizens of the State of Israel on all fronts — in the north, the south, the center and also in the maritime arena.
“The navy operates day and night to protect Israel’s maritime space and borders at sea. For this case as well, we are prepared,” he said in response to a question about the Freedom Flotilla vessel, declining to go into detail.
“We have gained experience in recent years, and we will act accordingly.” 
Spokesperson Brigadier General Effie Defrin speaking to the media
What is clear is that Thunberg’s journey has drawn massive attention to Gaza’s humanitarian and environmental conditions. At the same time, it opens up a broader conversation on the role of ecological activism and justice in a time of war.
For Israel, the situation continues to be consistent with its responsibility to ensure humanitarian access to civilians in Gaza, while maintaining its security.
