To protect communities and land, scientists and engineers use technology to predict and limit the impact of Earth's constructive forces (processes that build up land, like volcanoes and sediment buildup) and destructive forces (processes that break down land, like earthquakes, erosion, and floods).

Part 1: How Technology Predicts Earth Events

Scientists use advanced tools to monitor changes in the Earth and atmosphere before disaster strikes:

• Seismographs: Detect and measure seismic waves to record earthquake vibrations and strength.

• GIS Mapping (Geographic Information Systems): Digital mapping software that collects and analyzes geographic data to help forecast flood risks.

• Infrared Satellite Technology: Measures heat energy emitted from Earth. It reads cloud temperatures to predict rain intensity, or monitors sea-surface temperatures to track major global weather shifts.

Part 2: How Humans Limit the Impact of Destructive Forces

Engineers and communities actively build barriers and implement solutions to minimize damage from Earth's forces:

Structural Engineering

• Earthquake-Resistant Buildings: Ongoing seismic research helps architects use flexible building techniques and durable materials that withstand tremors.

• Dams: Georgia operates 357 flood control dams that hold back water to protect downstream communities, homes, roads, and farms.

• Levees: Raised embankments built along riverbanks to keep rivers from overflowing into surrounding lands.

• Storm-Drain Systems: City infrastructure designed to redirect heavy rainwater runoff.

Coastal & Land Management

• Vegetation Replacement: Planting trees and deep-rooted plants along coastlines to stabilize soil and prevent water damage.

• Beach Nourishment & Reclamation: Adding sand to eroded beaches to strengthen shorelines.

• Seawalls: Hard structures built along coasts to block high waves and prevent sand erosion.

• Floodplain Management: National, state, and local policies that provide community resources, building rules, and safety guidelines for living in flood zones.