Authors are chosen from a list of researchers prepared by governments , other important groups , the Working Group\/Task Force Bureaux , and other experts ( , 4.2.1,2 ) . Authors for the IPCC reports are chosen from a list of researchers prepared by governments , and participating organizations and the Working Group\/Task Force Bureaux , and other experts as appropriate , known through their publications and works ( , 4.2.1,2 ) .