"We are in a race between two factors, one is the capacity of humans and ecosystems to adapt, the other is the speed of impact of climate change".
"These changes will continue for generations to come".
Specifically reporting on the ocean and the cryosphere (the frozen parts of the planet), the report highlights the necessity of the oceans, cryosphere and the services they provide. "We can help an ecosystem be more resilient over time", said Susanna Fuller, senior project manager with the advocacy group Oceans North.
"Sea level is now rising more than twice as fast and will further accelerate reaching up to 1.10 meters in 2100 if emissions are not sharply reduced", said Valérie Masson-Delmotte, co-chair of the IPCC Working Group I in a statement. "But we depend on and are influenced by them directly and indirectly in many ways - for weather and climate, for food and water, for energy, trade, transport, recreation and tourism, for health and well-being, for culture and identity".
Rising sea levels are particularly threatening to coastal areas, causing more extreme tropical storms. Sea-level rise is not globally uniform and varies regionally.
However, healthy oceans can also provide some of the solutions to climate change by capturing most of the excess heat and Carbon dioxide produced by our modern society, and by providing sustainable food and renewable energy.
What's more, by the end of the century, the report predicts that extreme increases in sea level, which in the past may have happened once every couple of decades, will become yearly occurrences.
The more than 100 authors from 36 countries are calling for countries to put forth ambitious climate action policies pursuant to the landmark Paris Agreement.
If carbon emissions keep rising at current rates, the oceans will turn into foe, threatening low-lying islands and cities and driving up costs of coastal protection and flooding. The sea levels around the globe are rising. Smaller glaciers across the world are estimated to lose over 80 percent of the present ice bulk by 2100 if emissions are not cut.
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The scientists said there may be some impacts to the global climate - like some amount of sea-level rise - that can no longer be stopped.
New Jersey is particularly vulnerable to numerous impacts detailed in the new report thanks to the state's coastal location, according to Garden State scientists. That would increase to 60-110cm if greenhouse gas emissions continue to strongly increase.
Rising temperatures mean oceans will have less oxygen, and this, along with more heatwaves and increased acidification, will make fish move further away from the coast and create larger deadzones, where life can not survive.
Total global mean sea level rose by about 0.16 meters between 1902 and 2015 (a little over 6 inches).
They could be happening at a rate 20 times higher with 2C of warming - or 50 times higher if emissions kept climbing.
Guterres said last week the world was "losing the race" on climate change, and the latest report spells out the extent to which the gap between what is required and what is happening is widening.
He said: "They see the future, and the future of the world that should still be there for them to deliver the services it now still does".
The release of the IPCC's most recent report comes just days after the conclusion of the U.N. Climate Action Summit and in tandem with the 74th session of the U.N. General Assembly in New York City, that's still ongoing.