# How to use Climate99

Climate and weather evidence reference.

## Start with a precise record

Use the name, identifier or place you want to investigate. The website scope is: Climate and weather evidence reference.

## Compare like with like

Open the relevant records and guides below. Keep identifiers, geography, units and source dates together; a record with a similar name or a different reporting period may answer a different question.

## Take the evidence to the original source

Follow the source references before making a consequential decision. Treat missing or historical information as a limitation, and use the relevant authority or provider for a current determination.

## Tools and records

- [Open climate99.com](https://climate99.com/)
- [Compare](https://climate99.com/compare)
- [Map](https://climate99.com/map)
- [Co2 emissions per capita](https://climate99.com/metric/co2-emissions-per-capita)

## Question guides

- [Can you give me an example of climate and weather?](https://climate99.com/task-guides/example-of-climate-and-weather/index.md)
- [What factors affect climate?](https://climate99.com/task-guides/what-factors-affect-climate/index.md)
- [Which statement best differentiates between weather and climate?](https://climate99.com/task-guides/weather-vs-climate-difference/index.md)

Source: https://climate99.com/ (first-party website; inspected 2026-10-18).