In what organizers are calling the largest-ever demonstration of its kind in Minnesota history, more than 2,000 Indigenous-led water protectors on Monday continued nonviolent, direct action protests against the planned replacement and expansion of Enbridge\u0026#039;s Line 3 tar sands pipeline.\r\n\r\n\u0022Our ancestors made agreements to take care of this water and land forever together, and now is our time to do that.\u0022 —Winona LaDuke, Honor the Earth\r\n\r\nStop Line 3 campaigners said over 1,000 water protectors marched with Indigenous leaders to the headwaters of the Mississippi River\u0026nbsp;on the third day\u0026nbsp;of the Treaty People Gathering—which organizers billed as \u0022the beginning of a summer of resistance\u0022—to participate in a treaty ceremony at a proposed Line 3 crossing site.\r\n\r\nThe $9 billion pipeline project—which if completed will carry up to 750,000 barrels of crude tar sands oil, the world\u0026#039;s dirtiest fuel, from Alberta to the port of Superior, Wisconsin—is slated to traverse Anishinaabe treaty land without tribal consent. The proposed pipeline route crosses more than 200 bodies of water and 800 wetlands, raising serious concerns not only about the project\u0026#039;s impact on the climate emergency, but also about leaks and other accidents opponents say are all but inevitable.\r\n\r\nSouth of the Mississippi headwaters gathering, over 500 activists in coordination and solidarity with the Indigenous women and two-spirit-led Giniw Collective shut down a Line 3 pumping station at Two Inlets, northwest of Park Rapids, with some demonstrators locking themselves to construction equipment.\r\n\r\n\r\n\r\nA low-flying helicopter protesters said belongs to the U.S. Department of Homeland Security kicked up a large dust cloud in an apparent effort to intimidate and disperse activists from the pump station protest site. Water protectors continued their resistance even as police clad in riot gear arrived at the station and reportedly began arresting demonstrators later in the afternoon.\r\n\r\n\r\n\r\nTreaty People Gathering participants are calling on President Joe Biden to cancel Line 3 like he rescinded the federal permit for the Keystone XL pipeline on his first day of office following years of grassroots organizing and pressure by opponents. However, Biden has disappointed activists by refusing to shut down the Dakota Access Pipeline (DAPL), another highly controversial project that was the site of massive resistance and brutal repression in 2016.\r\n\r\nThe New York Times reports some tribal leaders are hoping that Interior Secretary Deb Haaland, a pipeline opponent and the first Native American Cabinet secretary in U.S. history, will influence Biden\u0026#039;s Line 3 decision. Haaland, who was chair of the New Mexico Democratic Party at the time, participated in the #NoDAPL protests at Standing Rock.\r\n\r\nHowever, an Interior Department spokesperson declined to comment to the Times about any role that Haaland might potentially play in Line 3 policy.\r\n\r\n\r\n\r\nIndigenous leaders stressed their ancient connection to the land and water that they say is imperiled by the Line 3 project.\r\n\r\n\u0022Our ancestors made agreements to take care of this water and land forever together, and now is our time to do that,\u0022 protester Winona LaDuke, a two-time vice presidential candidate on Ralph Nader\u0026#039;s Green Party ticket and co-founder and executive director of the Indigenous environmental advocacy group Honor the Earth, said in a statement.\r\n\r\nStop the Money Pipeline communications coordinator Jackie Fielder drew attention to the financial institutions bankrolling the Line 3 project:\r\n\r\n\r\n\r\nGiniw Collective co-founder Tara Houska said in a statement that, \u0022Our Mother is calling out, and it\u0026#039;s time for us to listen or do the work to remember how.\u0022\r\n\r\n\u0022It\u0026#039;s also time for us to all stand with our words,\u0022 added Houska. \u0022The situation is urgent, it requires urgent response. Find your bravery, find your community, find your truth. Stand with us and Stop Line 3.\u0022\r\n\r\nLaDuke and Houska were two of the numerous prominent activists present at Monday\u0026#039;s protests. Others included 350.org co-founder Bill McKibben; Indigenous organizers Dawn Goodwin, Taysha Martineau, Nancy Beaulieu, and Simone Senogles; and actor/activists Rosanna Arquette and Jane Fonda.\r\n\r\n\r\n\r\n\u0022For years we have tried to assert our sovereignty and speak out against Line 3,\u0022 said Goodwin, co-founder of the RISE Coalition. \u0022We still have time to save our sacred waters and land—our life sources.\u0022\r\n\r\nMotioning toward the crowd of pumping station protesters, Fonda told the Associated Press that \u0022this is important; this is what we need,\u0022 as she held up a sign with Biden\u0026#039;s image reading, \u0022Which side are you on?\u0022\r\n\r\n\r\n\r\nLate last month, over 300 advocacy organizations delivered a letter to Biden imploring him to direct the U.S. Army Corps of Engineers to suspend or revoke Canada-based Enbridge\u0026#039;s Line 3 Clean Water Act Section 404 permit.\r\n\r\n\u0022Your unprecedented goals for climate action, for federal respect of tribal sovereignty, for environmental justice, and for science all demand you revoke or amend the Line 3 presidential permit,\u0022 the letters\u0026#039; signatories asserted.\r\n\r\nAccording to the Associated Press, the Minnesota Court of Appeals is expected to rule by June 21 whether Enbridge has proved the long-term necessity of the Line 3 project. With the climate emergency in mind, Houska told the Times that she recently told White House climate adviser Gina McCarthy that \u0022you can\u0026#039;t cancel Keystone XL and then build an almost identical tar sands pipeline.\u0022\r\n\r\nUnderscoring what climate campaigners and United Nations Secretary-General\u0026nbsp;António Guterres have called the \u0022suicidal\u0022 nature of fossil fuel expansion, scientists working at the National Oceanic and Atmospheric Administration\u0026#039;s Mauna Loa Atmospheric Baseline Observatory in Hawaii reported Monday that atmospheric carbon dioxide reached a monthly average level of 419 parts per million in May, which is not only the maximum reading ever recorded but also the highest concentration the planet has experienced in over four million years.