Mention any two harmful effects of Global Warming.

OR

State any two threats of global warming.

Two harmful effects/threats of global warming are:

1. Rise in Sea Level — Global warming causes melting of glaciers and ice-caps, resulting in a rise in sea level. This destroys beach nesting shelters of sea turtles, threatens coastal areas and damages the breeding of sea birds and sea animals.

2. Extinction of Animals and Birds — Global warming has caused extinction of many animals including migratory birds. Heat waves also lead to heat strokes, heart attacks and other heart-related ailments in humans, while glacier retreat affects water availability.