Which of the following statements about the impact of climate change on oceans are not true?

(a) The oceans have become less acidic over the past few decades.
(b) The sea surface temperature has increased during the last century.
(c) Sea level has risen at the rate approximately six-tenth of an inch since 1880.
(d) The oceans will store less carbon-dioxide in the coming years.

Choose the most appropriate answer from the options given below:

Correct option is D

The correct answer is (A) and (D).

• Statement (A) is incorrect because, in fact, oceans have become more acidic over the past few decades, primarily due to higher concentrations of carbon dioxide (CO2) being absorbed by the oceans. This leads to a decrease in the ocean's pH level.
• Statement (D) is also incorrect because oceans are currently absorbing increasing amounts of carbon dioxide due to the higher CO2 levels in the atmosphere, contributing to further acidification.

Information Booster:

1. Oceans have absorbed about 30% of human-made CO2 emissions, which has resulted in ocean acidification.
2. Sea surface temperatures have risen by approximately 0.6°C since 1880, causing coral bleaching and shifts in marine ecosystems.
3. Melting ice sheets and thermal expansion have contributed to global sea level rise.
4. Increased CO2 absorption by oceans affects marine life, especially species that rely on calcium carbonate for shells and skeletons.
5. The impact of acidification is particularly significant for coral reefs, which are vital for marine biodiversity.

Additional Knowledge:

1. Statement (B) is true; the sea surface temperature has indeed risen significantly due to global warming and climate change over the last century.
2. Statement (C) is true as well; sea level has been rising at the rate of about six-tenths of an inch per year since 1880 due to thermal expansion and melting ice sheets.