World's Deltas Are Sinking

Now here is an environmental disaster that can be squarely placed as the fault of the human race! Of the world's major river deltas, over 70% of them are sinking putting about half a billion people at risk. Our desire to control our rivers and extract power from them means that very little sediment actually reaches the deltas. River deltas rely on this sediment to build them up in a process called 'aggradation' (a new word for me!). Some deltas are sinking faster than the sea level is rising!

Your Tuesday questions are: -

1. Which Italian operatic pop tenor was born today in 1958 and has been blind since the age of 12?
   
   
2. Swedish boxer Ingemar Johansson (right) was born today in 1932 and defeated which American heavyweight to become World Champion in 1959?

   
   
3. Which chemist and physicist was born today in 1791 in London and has the SI Unit of Capacitance named after him?
   

Yesterday's Answers: 1. Stonehenge; 2. "Carrie"; 3. Gustav Holst