Can Global Temperature Fall After Overshooting 1.5°C?
Global temperature can decline after overshooting 1.5°C if net-negative emissions are achieved, but this requires large-scale carbon dioxide removal and comes with irreversible impacts.…
Topic archive
Climate Change
Impact of greenhouse gases on global temperature and weather patterns.
Shared Socioeconomic Pathways Explained: Current Scenario Framework and Projections
The Shared Socioeconomic Pathways (SSPs) are a set of five global scenarios (SSP1–SSP5) used in climate research to describe alternative socioeconomic futures through 2100.…
Why Sea-Level Rise Differs Between Locations
Sea-level rise is not uniform across the globe due to a combination of factors including gravitational effects from melting ice sheets, ocean currents and…
Sea-Level Rise: Thermal Expansion vs Melting Ice – An Evergreen Explainer
Sea-level rise is driven by two main processes: thermal expansion of seawater as it warms, and the addition of freshwater from melting land ice.…
Gross Zero vs Net Zero Emissions: Understanding the Difference
Gross zero emissions means eliminating all greenhouse gas emissions at their source, while net zero allows for some residual emissions to be balanced by…
Avoidance Credits vs Removal Credits: A Comparative Analysis of Carbon Market Instruments
Avoidance credits finance projects that prevent emissions, while removal credits support projects that extract CO2 from the atmosphere. Both are used in carbon markets…
Why Methane Causes Strong but Shorter-Lived Warming
Methane is a potent greenhouse gas that traps heat far more effectively than carbon dioxide but remains in the atmosphere for only about 12…
Per-Capita vs Total Environmental Impact: The Case of Global CO2 Emissions
In 2022, global total CO2 emissions from fossil fuels and industry reached 36.6 GtCO2, while per-capita emissions stood at 4.7 tCO2 per person, according…
Projected Global Warming by 2100 Under Current Policies: Insights from Integrated Assessment Models
According to the UNEP Emissions Gap Report 2023, integrated assessment models (IAMs) project a median global warming of 2.8°C by 2100 under current policies,…
Increasing CO₂ threatens human nutrition
A 2014 study in Nature found that rising atmospheric CO₂ levels reduce the protein, iron, and zinc content of staple crops like wheat, rice,…