La Nina is suspected to have caused recent floods in Australia. How is La Nina different from EI Nino?

1. La Nina is characterized by unusually cold ocean temperature in the equatorial Indian Ocean Whereas EI Nino is characterized by unusually warm ocean temperature in the equatorial Pacific Ocean.

2. EI Nino has an adverse effect on south-west monsoon on India, but La Nina has no effect on monsoon climate.

Which of the statements given above is/are correct?

I.A.S. (Pre) 2011