Critics have questioned the methods of a study claiming that the WHO has greatly underestimated the number of malaria fatalities.
Top controversies of 2012
SciDev.Net revisits some of the hottest controversies in science and development in 2012: scientists at loggerheads, flawed studies, missing data, forgery, angry neighbours, environmental experiments, magic mountains and toxic gold.
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India's Supreme Court has approved a multi-billion dollar plan to divert water from more than 30 Indian rivers to dry regions, angering the country's neighbours.
A study that claimed to boost cassava's protein content has been retracted after the research team found they could not repeat its results.
Thailand's academic credibility has been put in the spotlight again, with opinion divided over a government official's forgery conviction.
Opinion in Jordan is divided over the country's planned nuclear reactor and training centre, which protestors say jeopardises public safety.
Scientists are challenging a decision to allow small-scale to continue to use mercury to separate gold from other minerals.
The environmental threats posed by the world's first deep-sea mining project may have been poorly assessed, says a campaign group review.
Controversy has arisen over claims that mountain formations in Indonesia are manmade structures capable of withstanding earthquakes.
Plans to channel more than a billion cubic metres of water each year from the Red to the Dead Sea have been challenged by environmentalists.
A controversial science reform that gave the Venezuelan government more control over a private sector R&D tax has boosted science funding.