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Photo: Ana Rodríguez Carrington (CC BY 2.0)Victory: Biosphere Reserve in Baja California Saved from Toxic Mine
Known as an “ecological treasure house,” the Sierra La Laguna Biosphere Reserve at the southern tip of Baja California will not be spoiled by toxic mine waste, thanks in part to AIDA’s advocacy.
The reserve was once an island, so it’s home to rare plant and animal species. Canyons, swimming holes, and hot springs can be found in its granite mountain range and lowland tropical forests.
Thanks to AIDA and our partners in Mexico, the Mexican government denied an environmental permit for the Paredones Amarillos gold mine, halting the project for the time being. To protect the biosphere reserve, AIDA helped educate community groups and decision makers about the mine's risks. This helped to build the political momentum necessary for the government to deny the permit.
To extract gold from the mountains, the Canadian company Vista Gold proposed to carve out huge quantities of rock—each ton containing a mere gram of gold–-grind it into sludge, and treated it with cyanide. The company planned to dump massive amounts of toxic waste (called “tailings”) behind a dam intended to store it forever. Unfortunately, tailings dams can break for various reasons, as happened at Bolivia’s Porco mine in 1996. When that dam collapsed, more than a quarter million metric tons of tailings flooded the river and contaminated 500 miles (800 km) of waterways in Bolivia, Argentina and Paraguay.
The mine could also cause acid mine drainage. When sulfur-containing rocks are exposed to air and water, sulfuric acid forms, which causes toxic heavy metals to dissolve and drain into the watershed. The risk of acid mine drainage in Sierra La Laguna was significant and the human and environmental cost would have been tremendous: thousands of people and countless wildlife in the reserve rely on its water for survival.
Depleting freshwater is a further threat because mines use tremendous quantities of water. Owing to the scarcity of water in the reserve, Vista Gold proposed to build a plant on the Pacific coast to remove salt from sea water in a highly energy-intensive process, and then pump the water 45 km to the mine site. The desalination plant posed a threat to the endangered leatherback sea turtle.
Singly and together, the mine’s impacts would have devastated a rare jewel, a unique and lush paradise worth saving for future generations.
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Coral reefs are my favorite wetlands. They’re full of so many colors and shapes, and simply teeming with life. When I’m underwater, my heart is full of peace and excitement, as I see myself surrounded by so many forms of life, so many species living together. As a marine biologist, I’ve had the opportunity to scuba dive in a variety of countries and see many of these beautiful ecosystems up close. Of all my dives, the ones I enjoyed most were those I did—for work and for pleasure—in the Bay Islands of Honduras. As a recent college graduate and volunteer with the Atlantic and Gulf Rapid Reef Assessment Program, I was in charge of monitoring the countless organisms that live in or on the reefs—seaweed, sea urchins, lobsters, queen snails, and so many others. Without a doubt, my time diving in the Cayos Cochinos sparked my personal and professional journey. Since then, I’ve set out to protect these magical ecosystems, vital to all life this planet. My current role, as scientific advisor to AIDA, uses science to strengthen the legal arguments employed to protect these and other at-risk natural environments in Latin America. Wetlands, vital and at-risk In addition to coral reefs, wetlands—characterized by the presence of water—include lakes and rivers, underground aquifers, swamps and marshes, grasslands, peat bogs, estuaries and deltas, mangroves, and sea grasses. Wetlands act as the “kidneys” of the planet because they recycle water and waste, retain sediment and nutrients, reduce erosion, and absorb carbon dioxide from the atmosphere, in turn mitigating climate change. However, it’s estimated that since 1700 we’ve lost nearly 87 percent of our wetlands at a speed three times greater than the loss of our natural forests. This has caused a drastic reduction in biodiversity, affecting 81 percent of continental species and 36 percent of marine and coastal species. Among the greatest threats to our wetlands are contamination by garbage, wastewater and industrial pollution; changes in land use; agricultural runoff, erosion and climate change. What’s more, global warming is increasing the temperature of the oceans, raising sea levels, and melting the poles. According to the Intergovernmental Panel on Climate Change, an increase of 1.5°C in global temperature could kill almost 90 percent of the world’s coral reefs—an irreversible and heartbreaking loss. Taking action to save wetlands Given this frightening global scenario, urgent action is required to protect our planet’s wetlands. In fact, there are many ways we can begin to do so immediately, such as: Creating restoration campaigns for vital ecosystems like mangroves and coral reefs. Declaring natural protected areas, to conserve wetlands and the species that depend on them. Developing policies that allow for the rational use of wetlands, where conservation is prioritized. Prohibiting the destruction of these ecosystems in any type of project, be it tourism, development or infrastructure. Establishing water treatment plans to prevent drainage and runoff from contaminating wetlands. Every year, on February 2, we celebrate World Wetlands Day, commemorating the signing of the Ramsar Convention, the only intergovernmental treaty for the conservation and rational use of our planet’s wetlands. This year’s celebration is focused on wetlands and climate change, inviting us all to reflect on the value of our wetlands, the critical services they provide, and urgency with which we must protect them. We are not powerless in the face of climate change. Saving our wetlands may just be the first step toward saving our planet, and ourselves.
Read morePutting my heart in the conservation of wetlands
Coral reefs are my favorite wetlands. They’re full of so many colors and shapes, and simply teeming with life. When I’m underwater, my heart is full of peace and excitement, as I see myself surrounded by so many forms of life, so many species living together. As a marine biologist, I’ve had the opportunity to scuba dive in a variety of countries and see many of these beautiful ecosystems up close. Of all my dives, the ones I enjoyed most were those I did—for work and for pleasure—in the Bay Islands of Honduras. As a recent college graduate and volunteer with the Atlantic and Gulf Rapid Reef Assessment Program, I was in charge of monitoring the countless organisms that live in or on the reefs—seaweed, sea urchins, lobsters, queen snails, and so many others. Without a doubt, my time diving in the Cayos Cochinos sparked my personal and professional journey. Since then, I’ve set out to protect these magical ecosystems, vital to all life this planet. My current role, as scientific advisor to AIDA, uses science to strengthen the legal arguments employed to protect these and other at-risk natural environments in Latin America. Wetlands, vital and at-risk In addition to coral reefs, wetlands—characterized by the presence of water—include lakes and rivers, underground aquifers, swamps and marshes, grasslands, peat bogs, estuaries and deltas, mangroves, and sea grasses. Wetlands act as the “kidneys” of the planet because they recycle water and waste, retain sediment and nutrients, reduce erosion, and absorb carbon dioxide from the atmosphere, in turn mitigating climate change. However, it’s estimated that since 1700 we’ve lost nearly 87 percent of our wetlands at a speed three times greater than the loss of our natural forests. This has caused a drastic reduction in biodiversity, affecting 81 percent of continental species and 36 percent of marine and coastal species. Among the greatest threats to our wetlands are contamination by garbage, wastewater and industrial pollution; changes in land use; agricultural runoff, erosion and climate change. What’s more, global warming is increasing the temperature of the oceans, raising sea levels, and melting the poles. According to the Intergovernmental Panel on Climate Change, an increase of 1.5°C in global temperature could kill almost 90 percent of the world’s coral reefs—an irreversible and heartbreaking loss. Taking action to save wetlands Given this frightening global scenario, urgent action is required to protect our planet’s wetlands. In fact, there are many ways we can begin to do so immediately, such as: Creating restoration campaigns for vital ecosystems like mangroves and coral reefs. Declaring natural protected areas, to conserve wetlands and the species that depend on them. Developing policies that allow for the rational use of wetlands, where conservation is prioritized. Prohibiting the destruction of these ecosystems in any type of project, be it tourism, development or infrastructure. Establishing water treatment plans to prevent drainage and runoff from contaminating wetlands. Every year, on February 2, we celebrate World Wetlands Day, commemorating the signing of the Ramsar Convention, the only intergovernmental treaty for the conservation and rational use of our planet’s wetlands. This year’s celebration is focused on wetlands and climate change, inviting us all to reflect on the value of our wetlands, the critical services they provide, and urgency with which we must protect them. We are not powerless in the face of climate change. Saving our wetlands may just be the first step toward saving our planet, and ourselves.
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