CNBC: Climate change will worsen the hit to countries' ratings from severe natural catastrophes by one-fifth of a notch on average, according to simulations by S&P. But the hit could be even greater for vulnerable countries, such as Thailand, which could see a fall in the ratings by as much as two notches. "Our simulations indicate that climate change-related natural hazards can harm sovereign ratings," S&P credit analyst, Marko Mrsnik, said in a report on Thursday. "In terms of average impact of climate...