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Riya Anne Polcastro

Riya Anne Polcastro is an author, photographer and adventurer based out of Baja California Sur, México. She enjoys writing just about anything, from gritty fiction to business and environmental issues. She is especially interested in how sustainability can be harnessed to encourage economic and environmental equity between the Global South and North. One day she hopes to travel the world with nothing but a backpack and her trusty laptop.

A local farmer in Vavatenina district, Madagascar, smiles at the camera while holding two heads of Chinese cabbage.

Rocked by Drought and Famine, Smallholder Farmers in Madagascar Get Support to Increase Yields

By Riya Anne Polcastro

Three girls mix soap in buckets are a part of a Surge for Water soapmaking lesson.

Billions Worldwide Still Can't Access Safe Sanitation: Community Ownership Models Could Change That

By Riya Anne Polcastro

A person uses the Duolingo app on their cell phone — immigrant entrepreneurs

Immigrant Entrepreneurs Lead 46% of the Fortune 500, and That's Not All

By Riya Anne Polcastro

Three people caring for crops at a community garden — community composting

Community Composting Can Be an Economic Powerhouse, Coalition Says

By Riya Anne Polcastro

Invasive carp jump out of the water near a fishing boat.

Invasive Carp Are Taking Over the U.S., But Our Pets Could Help

By Riya Anne Polcastro

A gloved hand holds a vial of blood labeled "coccidioidomycosis," the scientific name for Valley Fever.

What Can We Do To Address the Threat of Fungal Superbugs Tied to Climate Change?

By Riya Anne Polcastro

Two girls participating in Girls Up Initiative Uganda programming at their school smile at the camera.

Inside the Girl-Led Empowerment Movement Growing in Uganda

By Riya Anne Polcastro

The sun sets over the Grand Canyon — national parks

Grand Canyon Conservancy Helps Fill the Gaps as Federal Cuts Threaten National Parks

By Riya Anne Polcastro

Ivan Olivo, AJ Attia and Danny Golnik stand together in front of the Uber headquarters sign in Fare Co-op t-shirts.

This Ride-Hailing Platform is Built Different. What Does That Mean for Drivers?

By Riya Anne Polcastro

Different sized saplings grow in rows outside at a community-led tree planting project in Morocco — tourism

G Adventures and Planeterra Team Up For Tourism That Supports Climate Resilience

By Riya Anne Polcastro

A pile of dark chocolate nuts and sea salt Kind bars in the new recyclable paper wrappers.

Can Paper Wrappers Replace Plastic? Kind Wants to Find Out

By Riya Anne Polcastro

Kate Fitzgerald jumps up to spike a volleyball during an ASU game — student-athletes

New ASU Venture Studio Sets Student-Athletes Up for Entrepreneurship Off the Court

By Riya Anne Polcastro

A bartender at a University of Southern California football game pours a drink into a Better for All cup.

Can These Bioplastic Cups Reduce Plastic Waste in Event Spaces?

By Riya Anne Polcastro

The SMASH team creates a sign that reads "housing first" — climate gentrification

Inside the Community Land Trust Fighting Climate Gentrification in Florida

By Riya Anne Polcastro

Jeffrey Jones, executive director of Hope Village Revitalization, sits on the front steps of the La Salle Eco-Demonstration Home.

The Climate Leader With a Big Vision for Detroit’s Future

By Riya Anne Polcastro

A stack of coins with a ladder leaning against it — sustainable investing

Sustainable Retirement Investments Exist, And You Can Make the Switch

By Riya Anne Polcastro

An illustration of a computer with popups surrounding it — AI bias

Harnessing AI for Social Good Starts With Inclusive Data

By Riya Anne Polcastro

Sandra Turner-Handy overlooks a body of water with the Detroit skyline behind her — industrial air pollution

Local Organizations Lead the Fight Against Industrial Air Pollution in Detroit

By Riya Anne Polcastro

A cluster of monarchs basking in the sun on a tree branch.

Inside the Cross-Border Partnership to Replant Trees for Monarchs

By Riya Anne Polcastro

A solar array on a hill on the Pine Ridge Reservation in present-day South Dakota — Red Cloud Renewable

Training the Next Generation of Energy Sovereignty Warriors and Warriorettes

By Riya Anne Polcastro

billionaires boarding a private jet

To Slow the Climate Crisis, Decarbonize Billionaires Burning Through the Carbon Budget, Advocates Say

By Riya Anne Polcastro

energy sovereignty

Bringing Solar to the Northern Cheyenne Indian Reservation One Win at a Time

By Riya Anne Polcastro

Charlee Rising sun stands in front of a solar array speaking to another expert.

Forging the Way for Indigenous Women in Solar Installation

By Riya Anne Polcastro

A Farmerline team member and a farmer look down at a smartphone near an agricultural field.

From Seeds to Sales: Supporting Smallholder Farmers Where They Need It Most

By Riya Anne Polcastro

Cody Two Bears smiles while leaning on a solar panel array — energy sovereignty

The Nonprofit Bringing Tribal Nations Together to Develop Energy Sovereignty

By Riya Anne Polcastro

Raquel Garcia, executive director for Southwest Detroit Environmental Vision — air quality

Neighbors Come Together to Tackle Air Pollution and Climate Action in Detroit

By Riya Anne Polcastro

The Great Dome at the Massachusetts Institute of Technology — free tuition programs

Benefits Beyond Affordability: U.S. Universities Expand Free Tuition Programs

By Riya Anne Polcastro

Luis Galarza stands next to part of a solar system on a home.

The Florida Startup Rescuing Homeowners Left Behind by Belly-up Solar Installers

By Riya Anne Polcastro

A woman farmer harvests coffee in the forest — climate adaptation

Locally-Led Nature Conservation Works, So Why Aren't We Listening?

By Riya Anne Polcastro

Native climate justice organizer Shelby Rae Keplin — Dream.org Make It Real campaign

Faces of the Frontline: New Photojournalism Campaign Makes Climate Action Real

By Riya Anne Polcastro

Hip Hop Caucus

How Hip Hop Caucus Strengthens Its Activism Through Storytelling

By Riya Anne Polcastro

Children and adults sit together participating in The Waterschool curriculum in Brazil — Swarovski Foundation

Advancing Water Equity With Creativity and Collective Action

By Riya Anne Polcastro

A green Rivian R1 pulling a Billion Oyster Project boat — The Good Project

Bringing One Billion Oysters Back to New York Harbor Just Got Easier

By Riya Anne Polcastro

Hands reaching together to form the shape of a lightbulb — AI

Why Companies Should Center Worker Voices in the Age of AI

By Riya Anne Polcastro

A member of the Asheville Humane Society kissing a small dog on the head during Hurricane Helene recovery efforts.

Helping Hurricane Displaced Pets is a Nationwide Effort

By Riya Anne Polcastro

A plate of deli meats — Listeria

Here’s What Businesses and Consumers Can Do To Prevent Listeria Outbreaks

By Riya Anne Polcastro

A utility pole — marginal emissions

Shifting When and Where Electricity is Used Can Avoid Gigatons of Carbon Emissions

By Riya Anne Polcastro

"The World Bank Group" sign on the organization's headquarters in Washington D.C.

There's a Simple Solution for the Big Discrepancies in the World Bank’s Climate Finance Claims

By Riya Anne Polcastro

An aerial view of the Pajaro River near Pajaro and Watsonville, California — disaster recovery

Advocates in Pajaro Focus on Community Building for Disaster Recovery

By Riya Anne Polcastro

A stack of batteries — sodium-ion batteries

New Tech Prepares Energy Storage Companies For Sodium-Ion Batteries

By Riya Anne Polcastro

The G2RT off-grid toilet.

Why Researchers are Reinventing the Toilet

By Riya Anne Polcastro

A local guide points out Panama’s biodiversity while walking through the rainforest with travelers — Meaningful Travel Map

Tourism Cares is Putting Sustainable Travel Experiences on the Map

By Riya Anne Polcastro

Smart Girls Uganda participants working with piping.

Smart Girls Uganda Helps Young Women Overcome Barriers to Education

By Riya Anne Polcastro

A rod and reel setup on a swordfish fishing boat.

Can Rod and Reel Gear Save Nova Scotia’s Swordfish Harpoon Fleet?

By Riya Anne Polcastro

The Kore Infrastructure team.

How Kore Infrastructure Plans to Reduce Wildfire Risk by Turning Waste Into Energy

By Riya Anne Polcastro

A child opens a box of food from the summer meal program.

No Kid Hungry Serves Up Summer Meals With Help from CEOs

By Riya Anne Polcastro

Gavin Newsom, governor of California — climate disclosure bills

Support for California’s Climate Disclosure Rules Remains Strong Despite Push for Delay

By Riya Anne Polcastro

A laptop lit by multicolor light — artificial intelligence

Harnessing AI for Corporate Sustainability Requires Precautions

By Riya Anne Polcastro

An employee sews socks at a FutureStitch manufacturing facility.

More Than Socks: How a Knit Manufacturer is Changing Lives with Second Chances

By Riya Anne Polcastro

One of the digital twins of Perry, Iowa.

Can Digital Twins and Tree Mapping Help Cities Adapt to Climate Change?

By Riya Anne Polcastro