climate change

Climate Change

Climate Change: Meaning

  • Definition: A long-term change in average weather patterns that define Earth’s climates.

  • Effects: Broad range of observed effects linked to climate change.

  • Human Causes: Predominantly driven by human activities, especially fossil fuel burning, increasing greenhouse gas levels, raising average surface temperature.

  • Natural Processes: While human activities dominate, natural processes also contribute to climate change.

  • Climate Data Evidence: Key indicators include:

    • Increases in global land and ocean temperatures.

    • Rising sea levels.

    • Ice loss at poles and glaciers.

    • Changes in the severity and frequency of extreme weather events (hurricanes, heatwaves, wildfires, droughts, floods).

    • Shifts in cloud and vegetation cover.

Global Warming

  • Distinction: "Climate change" and "global warming" are often used interchangeably but refer to different phenomena.

  • Global Warming Definition: Long-term heating of Earth's surface observed since the pre-industrial period (1850-1900).

  • Causes: Mainly driven by human activities, particularly fossil fuel combustion increasing greenhouse gases.

  • Temperature Rise: Estimated global average temperature increase by about 1 degree Celsius since pre-industrial times, increasing more than 0.2 degrees Celsius per decade.

  • Human Impact: Current warming trend is unequivocally attributable to human activity, particularly post-1950.

Classroom Activity

  • Research Presentation Topics:

    • El Nino and La Nina

    • Extreme rainfall and flooding in Spain

    • Wildfires in Greece

    • Heat waves in North India

    • Flooding in Pakistan and Afghanistan

    • Impact of heat on tourism in Athens, Greece (Acropolis closure)

    • Fires in Los Angeles

Climate Change Risks

  • Business Awareness: Many companies underestimate the variety of climate risks affecting their operations.

  • Risk Identification: Leaders should better understand climate risks to protect businesses and seize opportunities in a decarbonizing economy.

  • Lack of Attention: Outside of carbon-intensive industries, few CEOs examine physical and transition risks associated with climate change.

Types of Risks

  • Physical Risks: Result from climate change's physical impacts (e.g., hurricanes, floods, sea level rise).

    • Potential Impacts: Severe damage or disruption to operations and supply chain, harming profitability and sustainability.

  • Transitional Risks: Risks organizations face during the transition to a low-carbon economy, including:

    • Policy and legal changes

    • Technological shifts

    • Market changes

    • Reputational risks

    • Current emphasis on transition risks over physical risks.

Some Potential Risks

  • Extreme Weather Costs: Could incur several hundred million dollars annually for businesses by 2030.

  • Transportation Costs: Transitioning to low-carbon economy may elevate transportation costs by 2030.

  • Product Redesign: Manufacturers may need to alter products for increasingly extreme climate conditions.

  • Energy Costs: Companies using high-energy equipment may experience rising expenses due to energy mix alterations.

  • B2B Investments: Significant investments in service centers in heat/pollution-affected regions could become vulnerable in the coming years.

Opportunities for Businesses

  • Perspective Shift: Climate change presentations often focus on risks, but transitioning to low-carbon also presents opportunities.

  • Potential Benefits:

    • Reduced operational costs

    • Climate-smart innovations

    • Enhanced long-term resilience

  • Initiatives:

    • Greenhouse gas emissions reduction

    • Transition to renewable energy sources

    • Ecosystem-based adaptation (nature-based solutions)

    • Development of new products and services.