Klimawandel: Die Grundlagen verstehen

by Vocafy Geprüft

Englisch (USA) B2 12 Fragen Science Nature & animals

Erfahre, wie der Klimawandel funktioniert, wie er sich auf den Alltag auswirkt und was uns Klimaprojektionen sagen können.

1. 1. Wähle die richtige Antwort aus.

   What do these long-term patterns describe?

   Weather records averaged over several decades show that a coastal town has wet winters and dry summers.

   • The town's climate
   • The town's weather forecast for next week
   • The town's most extreme recorded storm

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   • The town's climate

   Climate includes typical conditions, seasonal patterns, and variability over many years—not just average temperature.

2. 2. Fülle die Lücke aus.

   Wie beeinflussen Treibhausgase die Energie der Erde?

   Greenhouse gases allow much of the Sun's light to pass through but absorb some of the ___ that Earth gives off.

   • visible light
   • infrared radiation
   • ultraviolet radiation

   Denke an die Energie, die von einer warmen Oberfläche abgegeben wird.

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   Greenhouse gases allow much of the Sun's light to pass through but absorb some of the infrared radiation that Earth gives off.

   Dieser natürliche Treibhauseffekt hält die Erde wärmer, als sie ohne diese Gase wäre. Wenn mehr Treibhausgase hinzukommen, verstärkt sich die Erwärmung.

3. 3. Wähle die richtige Antwort aus.

   Why does burning these fuels increase atmospheric carbon dioxide?

   Coal, oil, and natural gas contain carbon that was stored underground for millions of years.

   • It removes carbon dioxide by using up atmospheric oxygen.
   • It transfers atmospheric carbon into long-term underground stores.
   • It moves carbon from underground stores into the air.

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   • It moves carbon from underground stores into the air.

   When these fuels are burned, carbon in the fuel combines with oxygen to form carbon dioxide.

4. 4. Fülle die Lücke aus.

   Even without adding water from melting land ice, warmer oceans can raise sea levels because seawater ___ as it warms.

   • expands
   • contracts
   • becomes denser

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   Even without adding water from melting land ice, warmer oceans can raise sea levels because seawater expands as it warms.

   Wärmeres Meerwasser nimmt mehr Raum ein. Diese thermische Ausdehnung und das Abschmelzen von Landeis tragen beide zum Anstieg des Meeresspiegels bei.

5. 5. Wähle die richtige Antwort aus.

   Welche Maßnahme ist ein Beispiel für die Anpassung an den Klimawandel?

   A coastal town raises flood walls, adds solar panels, and insulates homes to reduce heating fuel use.

   • Adding solar panels
   • Raising flood walls
   • Reducing heating fuel use

   Welche Maßnahme hilft der Stadt, mit den Folgen des Klimawandels umzugehen, statt deren Ursachen zu verringern?

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   • Raising flood walls

   Anpassung verringert Schäden durch die Folgen des Klimawandels. Klimaschutz setzt bei den Ursachen an, vor allem durch die Verringerung von Treibhausgasemissionen.

6. 6. Wähle die richtige Antwort aus.

   Was passiert, wenn sich mehr Kohlendioxid im Meerwasser löst?

   The ocean absorbs some of the carbon dioxide released into the atmosphere.

   • The water becomes less acidic.
   • The water's acidity stays unchanged.
   • The water becomes more acidic.

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   • The water becomes more acidic.

   Gelöstes Kohlendioxid bildet eine schwache Säure. Diese Veränderung kann es einigen Meerestieren erschweren, Schalen zu bilden.

7. 7. Wähle die richtige Antwort aus.

   Wie kann sich das auf den Niederschlag bei Stürmen auswirken?

   Warmer air can contain more water vapor before becoming saturated.

   • It can make heavy rainfall more intense.
   • It guarantees more rainy days in every region.
   • It makes heavy rainfall less intense by keeping water in the air.

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   • It can make heavy rainfall more intense.

   Mehr verfügbare Feuchtigkeit kann die Niederschlagsintensität erhöhen. Allerdings hängt der lokale Niederschlag auch von Winden und Wettermustern ab, sodass manche Regionen trockener werden können.

8. 8. Fülle die Lücke aus.

   When bright sea ice melts, it exposes darker ocean water. The darker surface absorbs more sunlight, which can cause ___ warming.

   • less
   • no further
   • additional

   Bright ice reflects more sunlight than dark ocean water.

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   When bright sea ice melts, it exposes darker ocean water. The darker surface absorbs more sunlight, which can cause additional warming.

   This is a reinforcing feedback loop: an initial change triggers effects that strengthen that change.

9. 9. Wähle die richtige Antwort aus.

   What should be included for the most complete comparison of their greenhouse gas emissions?

   Two buses travel the same route for the same number of years. One runs on diesel; the other runs on electricity.

   • Only emissions released from their exhaust pipes during use
   • Emissions from manufacturing, energy supply, use, and disposal
   • Emissions from manufacturing and disposal, excluding energy use

   Consider what happens before, during, and after the buses are used.

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   • Emissions from manufacturing, energy supply, use, and disposal

   A life-cycle comparison includes more than exhaust emissions. For an electric bus, the way its electricity is generated also matters.

10. 10. Wähle die richtige Antwort aus.

    What has the company achieved?

    A company cuts most of its carbon dioxide emissions and then removes from the atmosphere an amount equal to what it still releases.

    • No carbon dioxide released at all
    • More carbon dioxide removed than released
    • Net-zero carbon dioxide emissions

    Separate the amount released from the final balance after removals.

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    • Net-zero carbon dioxide emissions

    Net zero means emissions and removals are in balance. It does not mean emissions have stopped or past emissions have been erased.

11. 11. Wähle die richtige Antwort aus.

    Welche Schlussfolgerung wird durch diesen Vergleich gestützt?

    Climate simulations using only natural influences do not reproduce the global warming observed in recent decades. Those that also include human influences match the trend much better.

    • Human influences help explain recent global warming.
    • Natural influences alone explain the recent warming trend.
    • Human influences affect short-term weather but not long-term climate.

    Achte darauf, welche Simulationen besser mit den Veränderungen übereinstimmen, die tatsächlich gemessen wurden.

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    • Human influences help explain recent global warming.

    Vom Menschen verursachte Treibhausgasemissionen sind die Hauptursache der jüngsten globalen Erwärmung. Natürliche Einflüsse wirken sich weiterhin auf das Klima aus.

12. 12. Wähle die richtige Antwort aus.

    Why can both projections be scientifically useful?

    Two climate projections use the same model but different future emission pathways. They show different amounts of warming by the end of the century.

    • They record two warming trends that have already occurred.
    • They explore outcomes under different assumptions about future emissions.
    • They show that future warming is independent of emissions.

    A projection describes what could happen under particular conditions.

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    • They explore outcomes under different assumptions about future emissions.

    A projection depends on its assumptions; it is not a prediction of what will definitely happen. Different pathways help show how future emissions can affect climate risks.