How MEER works

Our Approach

Combining science, engineering and community partnership to deliver practical cooling solutions that work today — while supporting long-term climate resilience.

Dr Ye Tao and local engineers reviewing plans at a field deployment site in Sierra Leone
Sierra Leone field team · research to rooftop.
§ 02.5  /  Field note

In his own words — the approach, from the field.

0:00 / 0:00
● Rec · Sierra Leone

A short film from the field in Sierra Leone. Dr Ye Tao walks through the materials, the physics, and the pathway that carries this work from a research bench to a community rooftop.

Speaker
Dr Ye Tao
Role
Founder · Chief Scientist
Setting
Field deployment · Sierra Leone
Focus
Materials → deployment

Filmed on location · Sierra Leone

01 · A new kind of approach

The climate challenge cannot be solved by a single answer.

Reducing greenhouse gas emissions remains absolutely essential. It is the foundation of any credible response to climate change and MEER stands firmly behind it.

But emissions reductions alone cannot cool the planet quickly enough to protect the communities already living inside dangerous heat. People need relief now, not decades from now.

MEER believes humanity now needs an additional approach — one that complements decarbonisation by safely reducing heat where it matters most. Our work is designed to work alongside emissions reduction, never to replace it.

02 · Our guiding philosophy

Adaptive Mitigation.

Adaptation and mitigation are usually treated as separate goals. We believe carefully designed surface cooling technologies can achieve both — protecting communities today while contributing to a cooler planet tomorrow.

Immediate

Benefits today

  • Cooler homes & schools
  • Reduced heat stress
  • Lower energy demand
  • Water conservation
  • Improved public health
  • Protected crops & ecosystems

Long-term

Benefits tomorrow

  • Reduced emissions
  • Improved resilience
  • Restoring Earth's energy balance

One intervention. Two horizons. This is the idea we want you to leave with.

03 · Science first

Evidence, not ideology.

Every technology developed by MEER begins with rigorous scientific research. Decisions are guided by what the data actually shows — not by opinion, trend or convenience.

Our work is deliberately interdisciplinary, drawing on the fields that meet in a single square meter of reflective surface:

Climate science

Physics

Chemistry

Materials science

Engineering

Environmental monitoring

Diagram showing a MEER reflective surface with solar reflectivity above 90 percent and thermal emissivity of about 95 percent, reflecting sunlight and radiating infrared through the atmospheric window to space, so heat out exceeds heat in — zero-energy daytime cooling.
The physics we measure against: a MEER reflective surface returns more than 90% of incoming sunlight and emits roughly 95% of its thermal energy to space. When heat out exceeds heat in, the surface cools without a single watt of electricity.

04 · Laboratory to community

An 8-step path from first idea to lived impact.

Every MEER solution follows the same disciplined pathway. Nothing is deployed at scale until it has been proven in the field.

  1. STEP 01

    Research

    Peer-reviewed foundations

  2. STEP 02

    Engineering

    Design for real environments

  3. STEP 03

    Prototype

    Iterative build cycles

  4. STEP 04

    Lab testing

    Optical & durability

  5. STEP 05

    Field trials

    In the communities we serve

  6. STEP 06

    Community feedback

    Listening, always

  7. STEP 07

    Refinement

    Data-driven iteration

  8. STEP 08

    Scaled deployment

    Ready for the world

05 · With, not into

Technologies are developed with communities — not simply deployed into them.

A cool roof is only as effective as the people who install, maintain and live under it. Local knowledge shapes engineering decisions — from the shape of a canopy to the tools used on a Saturday morning installation.

Dr. Ye Tao meeting with local community leaders to discuss a cool-roof deployment
Community consultation in Sierra Leone — listening before building.
The best solution on paper is the one that a community can keep running for the next twenty years.

Listen first

Design begins with the people who live under the heat — not with an assumption.

Co-design

Materials, layouts and installation methods are shaped by local knowledge.

Local partnerships

We build with local organizations that already know their communities.

Local employment

Deployments create local jobs — installation, maintenance and monitoring.

Knowledge transfer

We share methods openly so communities can carry the work forward.

Capacity building

Long-term skills stay in the region long after a project ends.

06 · Building for scale

From a single roof to entire regions.

A solution that works on one building but cannot scale is not a solution to a global problem. MEER designs everything with deployment across cities and countries in mind.

Aerial view of Kroo Bay, Sierra Leone, showing reflective MEER roofs installed among rusted metal rooftops next to the water
Kroo Bay, Sierra Leone — reflective roofs at neighborhood scale.

Affordability

If a solution is not affordable, it cannot reach the people who need it most.

Durability

Designed to endure intense sun, monsoons, dust and time.

Simplicity

Complex physics — simple to install, use and maintain.

Local manufacturing

Whenever possible, materials are produced close to where they are used.

Environmentally responsible

Non-toxic, low-impact materials with responsible end-of-life pathways.

Ease of maintenance

Serviceable with tools and skills that are locally available.

07 · Measuring everything

Meaningful climate work needs robust evidence.

Every deployment is also an experiment. Sensors, models and long-term field studies turn each project into evidence — and each piece of evidence improves the next generation of design.

If it isn’t measured, it isn’t proven.

Environmental sensors

Field measurements

Thermal monitoring

Engineering validation

Modelling

Long-term performance

08 · Collaboration at every level

We work alongside, not above.

Collaboration accelerates innovation and keeps solutions practical, credible and globally relevant. MEER works with:

Universities
Research institutions
Governments
NGOs
Engineers
Architects
Scientists
Philanthropists
Local communities