Climate and weather conditions, such as the North Atlantic Oscillation, precipitation and temperature influence the birth sex ratio (BSR) of various higher latitude species, including deer, elephant seals or northern human populations. Although, tropical regions show only little variation in temperature, climate and weather conditions can fluctuate with consequences for phenology and food resource availability. Here, we evaluate, whether the BSR of chimpanzees, inhabiting African tropical forests, is affected by climate fluctuations as well.

Cocoa production will become increasingly difficult in the key growing regions of West Africa by 2030 because of climate change, according to a new study.

In 2002 CREPA initiated a regional research and demonstration programme on ecological sanitation in seven West African countries. ECOSAN is focused on simultaneously improving sanitation and food production. This is done by making urine and faeces more hygienic and then using them as safe fertilisers.

• Ivory Coast president Laurent Gbagbo has reinstated three senior civil servants, suspended for their involvement in the dumping of toxic wastes around the capital city of Abidjan, in September

Following the diagnosis of four cases of yellow fever in Ivory Coast, who has called for an immediate vaccination programme in the country. According to who, about 20 per cent of the

The Dutch cargo vessel Probo Koala, which illegally dumped huge amount of deadly toxic waste around Ivory Coast's main city Abidjan in the first week of September, has left Estonia and is now

Ivory Coast has begun mopping up the toxic waste that was illegally dumped by a Dutch-based commodities company, Trafigura Beheer BV, in early September. The waste, which left eight dead and at least

The cabinet of Ivory Coast has resigned following the dumping of toxic sludge in the city of Abidjan. A Panamanian-registered vessel, Probo Koala, had dumped over 500 tonnes of liquid toxic sludge