GEOLOGY

Detailed explanation-1: -Earth’s temperature has risen by an average of 0.14° Fahrenheit (0.08° Celsius) per decade since 1880, or about 2° F in total. The rate of warming since 1981 is more than twice as fast: 0.32° F (0.18° C) per decade.

Detailed explanation-2: -Two degrees of warming would bring around 29 additional days of extreme heat, with warm spells enduring for 35 extra days. At 1.5 degrees, 14% of the global population would be exposed to at least one severe heat wave every five years. That rate jumps to 37% if the planet reaches 2 degrees of warming.

Detailed explanation-3: -The 2-degree scenario is widely seen as the global community’s accepted limitation of temperature growth to avoid significant and potentially catastrophic changes to the planet.

Detailed explanation-4: -To limit warming to 2°C, emissions must decline by about 25% by 2030 and reach net zero by about 2070.

Detailed explanation-5: -Since 1880, average global temperatures have increased by about 1 degrees Celsius (1.7° degrees Fahrenheit). Global temperature is projected to warm by about 1.5 degrees Celsius (2.7° degrees Fahrenheit) by 2050 and 2-4 degrees Celsius (3.6-7.2 degrees Fahrenheit) by 2100.