Growth · alternatives · 2026

24 alternatives to EarthWaveSOS

24 Hours of Climate Actionism

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. EarthWaveSOS launched in 2022; newer entries below may have overtaken it.

1
Greenspark▲159
Climate action on autopilot
2023 · its alternatives →
2
Climate 365▲138
Automatically send a daily email for climate change 🌍
2019 · its alternatives →
3
The Climate Fixathon▲65
An online hackathon for makers to help fix the climate 🛠🌎
2019 · its alternatives →
4
EarthWave SOS▲2
Empower citizens to send a global emergency SOS.
2020 · its alternatives →
5
30day.earth▲94
30 day sustainability challenge straight to your inbox
2023 · its alternatives →
6TC
The Climate Fixathon- Online hackathon for makers to fix the climate▲10
The Climate Fixathon (https://fixathon.io/) is a 4-week online hackathon for individuals or teams to use their tech skills to launch a website, app or service intended to help restore a safe climate for our planet. It runs from 2nd-30th August with a prize value of $10k+. AWARDS ️ Awareness - Most likely to raise awareness of climate breakdown. Action - Most likely to help people take action against climate breakdown. ️ Facilitation - Most likely to make climate breakdown related tech projects easier to create in the future. WHAT YOU CAN WIN Our 3 winning team will each…
2019 · its alternatives →
7
#Climate▲77
Share climate actions with your followers
2014 · its alternatives →
8
ClimateAction▲127
Auto mail a letter to a US Senator demanding climate action
2019 · its alternatives →
9
Only One▲134
A platform to protect the ocean & tackle the climate crisis.
2020 · its alternatives →
10
Climatebase▲169
Discover climate-positive jobs, organizations, & events 🌎
2020 · its alternatives →
11
GlobalClimateCrisis.org▲91
Climate literacy for everyday people
2021 · its alternatives →
12
Humance▲230
Change the world supporting projects around the globe
2023 · its alternatives →
13
On Deck Climate Tech Fellowship▲189
A community to start, join & support Climate Tech companies
2020 · its alternatives →
14
Terra.do▲171
Everything you need to work in climate ✅
2022 · its alternatives →
15
Paris My State 🌎▲175
Petition states to join the United States Climate Alliance
2017 · its alternatives →
16
I turned algae into a bio-altimeter and put it on a weather balloon▲142
Hi HN - My name is Andrew, and I'm a high school student. This is a write-up on StratoSpore, a payload I designed and launched to the stratosphere. The goal was to test if we could estimate physical altitude based on algae fluorescence (using a lightweight ML model trained on the sensor data). The blog post covers the full engineering mess/process, including: - The Hardware: Designing PCBs for the AS7263 spectral sensor and Pi Zero 2 W. -The biological altimeter: How I tried to correlate biological stress (fluorescence) with altitude. - The Communications: A custom lossy compression…
Nov 2025 · radi8.dev · its alternatives →
17
Microvist for Mobile▲76
Practical eco challenges for a better world
2021 · its alternatives →
18
Sounds of Earth▲134
Listen to relaxing ambient sounds of nature
2021 · its alternatives →
19
CHOOOSE▲70
A platform for climate action
2018 · its alternatives →
20
Renewables.org Gift Cards▲112
The gift of climate impact, that pays back in cash
2023 · its alternatives →
21
AWorld ActNow▲87
App for living sustainably, in support of UN ActNow campaign
2021 · its alternatives →
22CD
Carbon Doomsday – Graph and API of Earth's Carbon Dioxide▲118
2018 · carbondoomsday.com · its alternatives →
23
Jumpstart▲78
Crowdfunding platform for clean energy
2018 · its alternatives →
24
ClimateHub▲69
The network for climate tech
2021 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →