Global sea level saw a big jump from 2022 to 2023 due in part to a switch between La Niña and El Niño conditions. A mild La Niña from 2021 to 2022 resulted in a lower-than-expected rise in sea level. A strong El Niño in 2023 helped boost the average amount of rise in sea surface height.
Seasonal or periodic climate phenomena can affect global average sea level from year to year. But the underlying trend for more than three decades has been increasing ocean heights as a direct response to global warming due to the excessive heat trapped by greenhouse gases in Earth’s atmosphere.
With more than 30 years of satellite observations, the data show that global average sea level has risen about 4 inches (9.4 centimeters) since 1993 and the rate of increase has more than doubled.
#GlobalSeaLevel #SeaLevelRise #ClimateChange #NASAEarth #EarthData
Video Description:
In the center is an animated graph of Global Sea Level Rise from 1993 to 2023. On the X-axis are months January to December. The Y-axis goes from 0 centimeters to 10 centimeters.
0-0:07: As the years tick by at the top of the graph, lines of different shades of blue are added to the graph. Each new line appears above the last one graphed. The lines all have a similar smooth shape, with a slight bump around October.
0:08-0:10: The lines that were graphed all rotate together to form one single line. The line is jagged and trends upward. The months on the x-axis are swapped for the years 1990-2025. The y-axis remains the same.
Compressed earth block projects in Kenya’s drylands are signalling a shift towards sustainable construction that balances material performance with environmental sustainability in construction. By replacing kiln‑fired bricks and cement with locally produced low embodied carbon materials, these buildings achieve reduced embodied carbon while enhancing thermal comfort through passive design. The combination of thermal mass and vapour‑open walls supports sustainable building design adapted to warmer climates and delivers measurable gains in lifecycle assessment and life cycle cost efficiency.
As whole life carbon and embodied carbon in materials become central to regulation and procurement, codification and quality assurance will dictate how rapidly such natural materials scale to mainstream use. Compressed earth blocks in Kenya exemplify how local innovation aligns with sustainability targets and social benefits for communities adapting to climate stress.
European policy is steering the supply chain towards a circular economy in construction. Tighter controls on plastic imports are designed to foster a stable market for compliant recycled polymers and strengthen traceability. For manufacturers pursuing higher recycled content, this supports circular construction strategies and improves environmental product declarations (EPDs). For specifiers and project teams, it provides a stronger evidence base for whole life carbon assessment within sustainable building practices and reinforces the commitment to resource efficiency in construction.
The UK’s accelerating offshore wind capacity, now exceeding 16GW, deepens the transition towards net zero carbon buildings and reduces the carbon footprint of construction by decarbonising energy supply. As sites electrify and equipment integrates renewable sources, the alignment between energy‑efficient buildings and carbon neutral construction grows closer. This shift enables data‑driven evaluation of whole life carbon performance and encourages contracting models that value carbon intensity alongside cost, advancing low carbon design and net zero objectives across the sector.
In alpine zones and high‑risk regions, the integration of climate‑informed planning, geotechnical monitoring and enforceable safety zones underscores the need to view climate adaptation as a core aspect of sustainable architecture. Infrastructure such as Spain’s high‑speed rail demonstrates how green construction combined with whole life carbon accounting can deliver deep emissions cuts while improving resilience. The global construction industry must merge such systemic decarbonisation with eco‑design for buildings, green building materials and sustainable material specification, ensuring that every project contributes to long‑term building lifecycle performance and to decarbonising the built environment.
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