A sample from the Kirehe deposit showed a promising silica content of 98.9%. One megatonne is equivalent to 1,000,000 tonnes, so 5,100 megatonnes equals 5.1 billion tonnes, which is enough to last ...

That would further equate to a 4.7 megatonne (MT) reduction in greenhouse gas (GHG) emissions, saving $237.4 million on carbon costs for the same period. Linda Conejo, business development manager ...

Pupils in public schools will be distance learning on Fridays throughout Ramadan, the Ministry of Education confirmed. This will apply to all pupils, except those who are taking pre-arranged exams on ...

Department of Chemical Engineering, Imperial College London, LondonSW7 2AZ , U.K.