Environment Guides: Air, Water, Climate and Practical Decisions - Yenra

Air and everyday materials

Computer Surplus: Prepare a Computer for Donation or Recycling

Choose a destination for an old computer, preserve needed files, select an appropriate erasure method and document the handoff.

Clean Air in an Apartment: Sources, Filtration and Room Planning

Build a room-by-room indoor-air plan using source control, suitable ventilation, particle filtration and realistic equipment checks.

Air Pollution: Read the AQI and Plan Your Day

Interpret US air-quality reports by checking the pollutant, location, time window and official activity guidance.

Compostable Party Plates: Choose the Plate and Its Destination

Plan event serviceware around reuse, the exact compostability certification and the receiving facility’s accepted materials.

Waste Management: Build a Practical Sorting and Reduction Plan

Inventory everyday waste, confirm local destinations and organize a repeatable collection plan for a home or small office.

Water and buildings

Green Roofs: Feasibility, Maintenance and Building Decisions

Prepare a green-roof feasibility brief covering building capacity, waterproofing, drainage, plant care and project-specific costs.

Water Pollution Pictures: Read Visual Clues and Report Concerns

Understand what water photographs can show, document an observation clearly and find the right testing or reporting channel.

Cost of Water Desalination: Compare the Full Water Supply

Compare desalination proposals using feedwater, recovery, energy, concentrate management, financing and delivered-water volume.

Measurement, emissions and experiments

Greenhouse Gas Emissions: Build a First Organizational Inventory

Define organizational boundaries, gather activity data and calculate a transparent first emissions estimate with clear limits.

Environmental Monitoring: From a Question to Useful Evidence

Plan a monitoring project with a defined decision, measurable indicator, sampling design, quality checks and a response process.

Biosphere Arizona: Understand Biosphere 2 and Its Experiments

Understand Biosphere 2’s research systems, distinguish controlled experiments from whole-Earth claims and work through a simple water balance.

Water treatment and ecosystems

Wastewater Treatment: Follow the Water and the Solids

Understand municipal wastewater treatment stages, read performance figures and ask useful questions about discharge, reuse and residuals.

Cloud Forests: Follow Fog, Rain and Water Through the Canopy

Understand cloud-forest water pathways and assess field or conservation claims using site conditions, a water budget and appropriately scoped evidence.

Ballast Water: Understand Transfer Risk and Treatment Evidence

Follow the ballast-water pathway, distinguish exchange from discharge standards and assess treatment claims through units, approvals and operating records.

Radioactive Fossil Groundwater: Read Radionuclide Results in Context

Read groundwater radionuclide reports by isotope, unit and sample context, and identify the correct water supplier, laboratory or regulator for follow-up.

Nanoscale Iron: Evaluate Groundwater Cleanup Claims

Evaluate nanoscale zero-valent iron remediation using contaminant chemistry, site contact, field evidence and monitoring after treatment.

Vehicle choices and retirement

Car Scrap Recycling: Arrange a Documented Vehicle Handoff

Choose a vehicle retirement route, check the recipient and quote, prepare local paperwork and retain a clear transfer record.

Hybrid Cars: Understand the Types and Compare Everyday Use

Distinguish hybrids and plug-in hybrids, assess charging access and compare energy use with a driving pattern you can explain.

Green Cars: Compare the Whole Transportation Choice

Compare gasoline, hybrid, plug-in hybrid and battery-electric options using real travel needs, charging access, energy costs and emissions boundaries.

Organizations and neighborhood projects

Environmental Sustainability: Turn a Goal into a Measurable Plan

Define an environmental priority, establish a baseline, assign an action and report its result with clear boundaries and evidence.

Green Cities: Plan a Neighborhood Greening Project

Prepare a neighborhood greening brief around resident needs, site permissions, maintenance responsibilities and useful measures of success.

Earth Day: Plan a Useful Community Action

Choose a practical Earth Day activity, confirm the host and material destinations, assign roles and document the result.

Climate and atmospheric evidence

Global Warming: Read the Evidence, Charts and Scenarios

Understand the evidence for warming, interpret temperature anomalies and compare climate scenarios with their baselines and limits intact.

Acid Rain Pictures: Understand Deposition and Read the Evidence

Use illustrations and measurements to understand acid deposition, pH, material damage and the evidence needed to explain environmental change.

Ozone Layer Pictures: Read the Map, Units and Season

Interpret ozone maps using Dobson units, coverage, dates and seasonal context, then separate daily variation from long-term recovery.

Power Plant Emissions: Read Plant Data and Emissions Rates

Read power plant emissions totals, generation and output rates with matching units, reporting years and facility boundaries.

Tree Pollution: Understand Trees, VOCs and Ozone

Understand how tree emissions, ozone removal, shade and local atmospheric conditions fit into an urban planting decision.

Forests and river landscapes

Tropical Rainforest Pictures: Read Forest Layers, Edges and Habitat

Interpret tropical rainforest images using location, forest layers, edges and connectivity, with a worked patch-shape example and observation sheet.

Redwood Trees: Identify the Species and Understand the Forest

Distinguish coast redwood, giant sequoia and dawn redwood, then interpret the habitat, regeneration and forest features around a tree.

Roanoke River: Explore the Watershed and Floodplain Habitats

Locate a Roanoke River reach, understand lower-river floodplain habitat, read gauge information and prepare a responsible observation visit.

Environmental technology and project assessment

10 Ways AI is Helping the Environment

Explore ten uses of environmental AI, their evidence needs, human oversight and resource costs.

10 Environmental Technologies Making a Difference

Understand environmental technologies through deployment, lifecycle and maintenance tradeoffs.

Carbon Capture and Storage: Evaluate the Whole Project

Evaluate capture, transport, storage, project evidence and net avoided emissions using a worked example.

Earlier reporting: air and climate

This section contains historical announcements, research reports or illustrative material. Dates and offers describe their original context.

Earlier reporting: water and ecosystems

This section contains historical announcements, research reports or illustrative material. Dates and offers describe their original context.

Earlier reporting: transport, products and community

This section contains historical announcements, research reports or illustrative material. Dates and offers describe their original context.