Read the given passage and answer the following questions based on it.

Emissions of carbon dioxide and other greenhouse gases plunged 4.6 percent in 2020, as lockdowns in the first half of the year restricted global mobility and hampered economic activity. Many hoped that this would mark the beginning of a more permanent shift downwards in emissions. Emissions from the manufacturing and the energy sectors contributed the most to recent global increases based on updated information from the IMF’s Climate Change Indicators Dashboard —a joint effort among national and international statistical organizations to provide timely data to help monitor the transition to lower carbon use.

As greenhouse gas emissions from human activities increase, they build up in the atmosphere and warm the climate, leading to many other changes around the world —in the atmosphere, on land, and in the oceans. While total emissions have climbed significantly above pre-pandemic levels, increases from transportation and households were more muted last year as the pandemic weighed on global mobility. This was particularly evident with the emergence of the omicron variant in the fourth quarter of last year. The public health policy measures in many countries drove down the emissions of households and of the electricity sector.

It will be important to monitor the emissions of both of these sectors as economies fully reopen in the context of historically high fossil fuel-based energy prices. The Intergovernmental Panel on Climate Change has said that, in the scenarios they assessed, limiting atmospheric warming to the key level of around 1.5 degrees Celsius requires global greenhouse gas emissions to peak by 2025 at the latest, emphasizing that achieving this milestone is a crucial step towards controlling the severity of climate change. The new data from the climate dashboard underscore what some scientists have warned: time is running out, and we must urgently bend the emissions curve to achieve the necessary reductions to limit atmospheric warming.

What does the passage suggest about the relationship between the pandemic and greenhouse gas emissions?

The correct answer is: "The pandemic caused a temporary decrease in emissions."

Let's carefully analyze the passage to understand why this is the right choice, and why the other options are incorrect.

Step 1: Identify the key evidence in the passage.

The very first sentence of the passage provides a direct and clear statement:

"Emissions of carbon dioxide and other greenhouse gases plunged 4.6 percent in 2020, as lockdowns in the first half of the year restricted global mobility and hampered economic activity."

This tells us two critical things:
1. Emissions fell significantly (by 4.6%) during 2020.
2. The reason was the pandemic's lockdowns — a direct cause-and-effect relationship.

Step 2: Confirm the "temporary" nature of the decrease.

The passage immediately follows with this important line:
"Many hoped that this would mark the beginning of a more permanent shift downwards in emissions."

The use of the word "hoped" is crucial — it implies that the decrease did not turn out to be permanent. The hope existed precisely because the shift was understood to be at risk of being temporary.

This is further confirmed later in the passage:
"While total emissions have climbed significantly above pre-pandemic levels..."

This sentence confirms that after the initial pandemic-driven drop, emissions rebounded and exceeded pre-pandemic levels — proving the decrease was indeed only temporary.

Step 3: Eliminate the incorrect options.

Option 1 — "The pandemic had no impact on greenhouse gas emissions": Directly contradicted by the 4.6% drop mentioned in the passage. ❌

Option 2 — "The pandemic led to an increase in emissions": The opposite of what happened during the lockdown period. ❌

Option 4 — "The pandemic gave significant time to construct a proper plan to curb greenhouse gas emissions": The passage makes no mention of any planning opportunity created by the pandemic. This is not supported by the text. ❌

Option 5 — "The pandemic accelerated emissions from the manufacturing sector": The passage actually says emissions from manufacturing contributed to increases in general (not specifically accelerated by the pandemic), and during the pandemic, overall emissions fell. ❌

Step 4: Arrive at the conclusion.

The passage clearly establishes a direct relationship: the pandemic caused lockdowns → lockdowns reduced mobility and economic activity → emissions dropped by 4.6% in 2020. However, emissions later climbed back above pre-pandemic levels, confirming the decrease was temporary, not permanent.

Therefore, the passage strongly and specifically suggests that the pandemic caused a temporary decrease in greenhouse gas emissions. ✅