Climate Congo is a tropical nation, which means it has a tropical climate. The wet season lasts from March to June and the dry season for the rest of the year. Temperature and humidity are high as in all tropical nations. The rivers of the country are flooded seasonally.
Ecology The terrain is a variation of
coastal plains,
mountainous regions,
plateaus and fertile
valleys. About 70 percent of the country's area is covered by
rain forest. The highest point, at 1,020 m, is
Mont Nabeba in the
Mayumbe mountains. The major rivers are the
Congo River at the border with the
Democratic Republic of the Congo, and the
Kouilou-Niari River. A 2014 expedition leaving from Itanga village discovered a
peat bog "as big as
England" which stretches into neighboring
Democratic Republic of the Congo.
UNESCO has declared two world
biosphere reserves in the country:
Odzala in 1977 and
Dimonika in 1988.
Natural resources Natural resources include
petroleum,
timber,
potash,
lead,
zinc,
uranium,
copper,
phosphates,
gold,
magnesium,
natural gas, and
hydropower. As of a 2012 estimate, 1.55% of the land is arable, while only 0.20% contains permanent crops. Approximately 20 km² is irrigated (2003 estimation).
Environmental issues Environmental issues include the high level of air pollution from vehicle emissions, water pollution from the dumping of raw sewage, tap water not being potable, and deforestation. Congo is party to the international agreements on
Biodiversity,
Climate Change,
Desertification,
Endangered Species,
Ozone Layer Protection,
Tropical Timber 83,
Tropical Timber 94,
Wetlands. It has signed but not ratified the
Law of the Sea and so on.
Forests Tree cover extent and loss Global Forest Watch publishes annual estimates of tree cover loss and 2000 tree cover extent derived from time-series analysis of
Landsat satellite imagery in the Global Forest Change dataset. In this framework, tree cover refers to vegetation taller than 5 m (including natural forests and tree plantations), and tree cover loss is defined as the complete removal of tree cover canopy for a given year, regardless of cause. For the Republic of the Congo, country statistics report cumulative tree cover loss of from 2001 to 2024 (about 4.4% of its 2000 tree cover area). The first assessed FREL, technically assessed in 2017, covered the REDD+ activities “reducing emissions from
deforestation” and “reducing emissions from
forest degradation” at national scale. It used a historical reference period of 2000–2012 and was assessed at 35,475,652
t CO2 eq per year for 2015–2020, including an upward adjustment for national circumstances linked to the country’s high-forest, low-deforestation profile and projected planned deforestation and degradation. The technical assessment reported that this first FREL included
biomass and deadwood for deforestation, biomass for forest degradation, and
CO2 only. An updated national FREL was submitted in 2024 and assessed in 2025. It again covered deforestation and forest degradation at national scale, but used a more recent historical reference period of 2017–2021 and was assessed at 31,656,549 t CO2 eq per year after revision during the technical assessment. The technical assessment states that the revised benchmark used updated activity data and national forest-inventory emission factors, and expanded coverage to include
biomass, deadwood,
litter and, for deforestation,
soil organic carbon, while also adding non-CO2 emissions (
CH4 and
N2O) from forest fires. == Extreme points ==