Real Climate

JULY 10, 2022

The fact that there is a natural greenhouse effect (that the atmosphere restricts the passage of infra-red (IR) radiation from the Earth’s surface to space) is easily deducible from; i) the mean temperature of the surface (around 15ºC) and, ii) knowing that the planet is normally close to radiative equilibrium.

Radiation 316

Radiation 2022 Greenhouse Atmosphere 316

Real Climate

NOVEMBER 29, 2023

In an unchanging climate, the random fluctuations would lead to warming in some parts of the world and cooling in others. In a world with just random local fluctuations but no climate change, about half the weather stations would show a (more or less significant) warming, the other half a cooling. It’s not hard to understand.

Greenhouse 301

Greenhouse Radiation Cooling Carbon Dioxide 301

Real Climate

AUGUST 12, 2021

from Rogelj et al (2018) – note how the red dot marked 2010 moves to the purple dot marked 2010, once historical modelling uncertainties are corrected for. estimate of no further CO 2 -induced warming or cooling once global CO 2 emissions reach and stay at next zero. This is best illustrated by this technical figure from SR1.5.

2018 329

2018 Climate Change 2013 2014 329

HumanNature

MARCH 31, 2021

When fuels are burned to create energy in a process called combustion, black carbon along with carbon monoxide and other compounds are created because there is not enough oxygen in the atmosphere for the reaction to go to completion. Whenever there are combustion processes, of which there are many in our industrial society (e.g.,

Atmosphere 52

Atmosphere Carbon Emissions 2020 2012 52

HumanNature

APRIL 10, 2023

Student in the Department of Atmospheric Science at Colorado State University Most people remember the water cycle they learned in school: water evaporates from lakes, rivers, and the ocean, air carrying this moisture rises, cools, condenses, and forms clouds, and these clouds precipitate water back down to the surface.

Climate Change 52

Climate Change Paris Agreement Atmosphere Cooling 52

Physics World

SEPTEMBER 16, 2021

It was a bold claim and some researchers initially struggled to accept the implications because it meant that energy must be flowing from the “cool” 6000 K surface of the Sun into the hotter corona – seemingly in violation of thermodynamics. This estimate was later revised upwards to 10 6 K and above. million kelvin (green).

Electricity 143

Electricity 2010 2005 Radiation 143