Climate Science 101


The 101 basics of climate science are simple - you can even fit them on a placard

  1. It’s warming

  2. It’s us

  3. We are sure

  4. It’s bad

  5. We can act

 

 It’s Warming

 

It’s us

Some more than others

Data from Oxfam & Stockholm Environment Institute

You can read more about greenhouse gas emissions, their sources, and how they contribute to global heating via organisations such as the Met Office and NASA.

 

We are sure

5 different datasets align on estimation of temperature change

 

It’s bad

IPCC, 2022: AR6 WG2 report figure SPM3

Risks and impacts escalate quickly

  • Tipping points in our climate system can cause rapid, irreversible shifts. Some of these critical thresholds have already been crossed.

  • Chatham House, the Royal Institute of International Affairs, published a crucial ‘Climate Change Risk Assessment’ in 2021, warning of cascading climate risk. It barely made the papers let alone the front pages.

  • Professional bodies such as the Institute & Faculty of Actuaries are making increasingly stark warnings about systemic impacts in the decades ahead, ranging from “catastrophic economic contraction to mass mortality, widespread migration, and socio-political breakdowns”

  • All of these risks are interconnected as part of a wider planetary health Emergency

 

We can ACT

There is a rapidly narrowing window of opportunity to safeguard people’s lives and enable a climate resilient future. This requires urgent mitigation (including deep cuts to greenhouse gas emissions) as well as adaptation measures

IPCC, 2023: AR6 synthesis report figure SPM1

Approaches to protecting our climate, nature and societies

Collective and personal actions to push for positive transitions