Oceans in 2021 were the hottest ever recorded

Five hottest years of global ocean temperature recorded since 1955, in zettajoules

Two measurement systems:

NCEI/NOAA

IAP/CAS

1981-2010

baseline

+227

zettajoules

Rank

Year

+235

1

2021

+211

+221

2

2020

+210

+214

3

2019

+189

+202

4

2017

+195

+196

5

2018

0

50

100

150

Two measurement systems:

NCEI/NOAA

IAP/CAS

1981-2010

baseline

Rank

Year

+227 zettajoules

+235

1

2021

+211

+221

2

2020

+210

+214

3

2019

+189

+202

4

2017

+195

+196

5

2018

0

50

100

150

Two measurement systems:

NCEI/NOAA

IAP/CAS

1981-2010

baseline

Rank

Year

+227 zettajoules

+235

1

2021

+211

+221

2

2020

+210

+214

3

2019

+189

+202

4

2017

+195

+196

5

2018

0

50

100

150

Two measurement systems:

NCEI/NOAA

IAP/CAS

1981-2010

baseline

Rank

Year

+227 zettajoules

+235

1

2021

+211

+221

2

2020

+210

+214

3

2019

+189

+202

4

2017

+195

+196

5

2018

0

50

100

150

Two measurement systems:

NCEI/NOAA

IAP/CAS

1981-2010

baseline

Rank

Year

+227 zettajoules

+235

1

2021

+211

+221

2

2020

+210

+214

3

2019

+189

+202

4

2017

+195

+196

5

2018

0

50

100

150