Read the following statements carefully:
1.Wallace Smith Broecker, a climate scientist who popularised the term 'global warming', passed away on 18 February 2019.
2.He was also first person to recognise what he called the Ocean Conveyor Belt, a global system of ocean currents circulating water and nutrients.
3.He was known in science circles as the 'Grandfather of Climate Science".
Which of the above statements is/are correct?