Global Warming: CH4 vs CO2

A presentation by

Elijah Adamos Joseph Lara

Global warming:-increase in global average surface

temperature…

What is a more potent greenhouse gas?Methane?Caron dioxide?

• Methane CH4 = 1.866ppm = 0.008432ppm yearly

increase (1981-2008)= molecule traps heat

20 times more effectively than CO2

= radiative forcing 0.48 W/m2

• Carbon Dioxide CO2

= 386.3ppm = 1.6837ppm yearly

increase (1981-2008)

= radiative forcing 1.66 W/m2

Surface Air Temperature

Methane

Standard deviation: 1.186

Surface Air TemperatureCarbon Dioxide

Standard deviation: 0.2361

Net Heating

Methane

Standard deviation: 1.292

Carbon dioxide

Standard deviation: 2.498

Conclusion

According to the models:

1.Methane causes greater surface air temperature changes.

2.Carbon Dioxide causes greater heating.

Methane increase from Arctic melting?

No.