The Paris Agreement is a legally binding international treaty on climate change. The goal of the agreement is to limit global warming to well below 2 degrees Celsius, preferably to 1.5 degrees Celsius, compared to pre-industrial levels.

Costa Rica is a world leader in environmental protection and sustainability. The country has a long history of conservation efforts and has been a pioneer in the development of renewable energy sources. In 2015, Costa Rica became the first country in the world to run entirely on renewable energy for more than 300 days.

Zero waste is a philosophy and a set of practices that aim to eliminate waste and promote the efficient use of resources. Zero waste initiatives focus on reducing the amount of waste produced, reusing and recycling materials, and composting organic matter.

Climate change is primarily caused by the burning of fossil fuels, which releases greenhouse gases into the atmosphere. These gases trap heat and cause the Earth's temperature to rise.

Biodiversity loss refers to the decline in the variety of life on Earth, including the loss of species, habitats, and ecosystems. This loss is primarily caused by human activities such as deforestation, habitat destruction, pollution, and climate change.

The animal rights movement is a social movement that advocates for the protection of animal rights and the end of animal exploitation. Animal rights activists believe that animals are sentient beings who deserve to be treated with respect and compassion.

Water pollution is primarily caused by the release of untreated sewage and industrial waste into water bodies. This can lead to contamination of drinking water, harm to aquatic life, and the spread of waterborne diseases.

Upcycling is the process of converting waste materials or unwanted products into new items of better quality or perceived value. Upcycling is a form of recycling that creates a new product with a higher environmental value than the original product.

Soil pollution is primarily caused by the excessive use of fertilizers and pesticides in agriculture. These chemicals can accumulate in the soil and harm soil organisms, reduce soil fertility, and contaminate groundwater.

Reduce refers to the first step in the waste hierarchy, which is to reduce the amount of waste produced. This can be done by using less materials, reusing items, and avoiding single-use products.

Air pollution is primarily caused by the release of harmful chemicals and pollutants into the air, such as particulate matter, ozone, and nitrogen dioxide. Air pollution can cause respiratory problems, heart disease, and other health issues.

Composting is the process of converting organic matter, such as food scraps, yard waste, and paper products, into a nutrient-rich soil amendment. Composting helps to reduce the amount of waste sent to landfills and provides a natural fertilizer for plants.

Climate change is primarily caused by the excessive use of fossil fuels and the burning of forests. These activities release greenhouse gases into the atmosphere, which trap heat and cause the Earth's temperature to rise.

Reuse refers to the second step in the waste hierarchy, which is to reuse materials and products instead of discarding them. This can be done by repairing items, finding new uses for old items, and donating or selling used items.

Water scarcity is primarily caused by the excessive use of water and the diversion of water from natural ecosystems. This can lead to droughts, water shortages, and conflicts over water resources.