Avoided Deforestation Carbon Credit projects, also known as REDD+ (Reducing Emissions from Deforestation and Forest Degradation), are a category of projects aimed at reducing greenhouse gas (GHG) emissions through the conservation of threatened forests. 

These projects work to prevent deforestation and forest degradation, keeping forests standing and preserving their carbon stocks. In addition to mitigating climate change, REDD+ projects also promote biodiversity conservation, protect ecosystem services, and support sustainable development of local communities through alternative economic activities and sustainable forest management practices. 

Afforestation, Reforestation, and Revegetation (ARR) projects are a category of carbon credit projects that aim to increase CO2 removal from the atmosphere through the planting and restoration of forests and vegetation. 

Afforestation involves planting new forests, reforestation focuses on restoring degraded forests, and revegetation covers the restoration of other types of vegetation. These projects sequester carbon, improve biodiversity, protect watersheds, prevent soil erosion, and support local communities, playing a crucial role in climate change mitigation and the restoration of natural ecosystems. 

Renewable Energy Carbon Credit projects involve the implementation and development of clean and renewable energy technologies to reduce GHG emissions associated with energy generation. 

These projects cover a wide range of renewable energy sources, such as solar, wind, hydroelectric, geothermal, and sustainable biomass. By replacing fossil fuel-based energy generation with renewable sources, these projects avoid the GHG emissions that would occur without the project's implementation. In addition to mitigating climate change, renewable energy projects also promote energy security, stimulate sustainable economic development, and create green jobs. 

Fuel Switching Carbon Credit projects involve replacing fossil or non-renewable fuels (such as hardwood burning) with cleaner and lower carbon intensity alternatives, such as natural gas, biogas, or sustainable biofuels. 

By switching to lower-carbon fuels, these projects avoid a significant portion of the GHG emissions that would occur if conventional fossil fuels continued to be used. The carbon credits generated by these projects are based on the difference between emissions in the baseline scenario (using fossil fuels) and the reduced emissions resulting from the fuel switch. 

Technology-based carbon projects to avoid methane emissions in landfills are essential initiatives for climate change mitigation – now also known as biogas management projects. 

These projects involve capturing and converting methane, a potent GHG, generated by the decomposition of organic waste in landfills. Using advanced technologies, such as gas collection systems and biogas-to-energy conversion units, these projects not only significantly reduce methane emissions but also transform an environmental liability into a renewable energy source. 

Methane management projects in agricultural production aim to reduce methane emissions from agricultural activities, mainly livestock, through the implementation of improved management practices. 

These practices include optimizing animal diets to reduce enteric fermentation, properly treating waste through biodigesters or composting systems, and adopting rice cultivation techniques that minimize methane emissions. The carbon credits generated by these projects are quantified based on the difference between methane emissions in the baseline scenario and the reduced emissions due to the implementation of mitigation practices, following specific methodologies approved by international certification standards.