Climate Change in Hawaii

Hundreds of Hawaii’s youth to join nationwide climate change rally

Global carbon dioxide levels measured atop Mauna Loa set a new monthly record

Hawaii students to join nationwide rally in fight against climate change

State on track to lower greenhouse gas emissions to 1990 levels by 2020

  As sea level rises, state considers the perils and opportunities of ‘managed retreat’

  Heavy snow on Maui. Historic floods on Kauai. Hawaii weather is getting weird

Continued Coverage

Did you know Mauna Kea has permafrost? ... Well, it might not have it for much longer

January seemed really cold, right? Actually, it was one of Hawaii’s warmest ever

  Experts seek long-term solutions to North Shore’s chronic erosion problem

In wake of winter storm, mayor tells residents: Be prepared for more

  Emergency funding, climate change among mayors’ top legislative priorities

Hawaii coral reefs stabilizing following bleaching event

  Hawaiian humpback whale count to continue despite government shutdown

An annual effort to monitor humpback whale migration numbers in Hawaii will proceed as scheduled despite the shutdown of the federal government.

Report: Hawaii’s coral reefs in ‘fair’ condition, face serious threats

Hawaii’s coral reefs are currently in “fair” condition, according to a status report from the National Oceanic and Atmospheric Administration.

As sea levels rise, short-term fixes along Hawaii beaches might hasten erosion, study says

Nearly 20 percent of beach has been lost in the area, while 55 percent of beaches are getting more narrow.

How to curb Hawaii’s greenhouse gas emissions? Legislators to consider carbon tax for polluters (big and small)

Motorists wouldn't be the only ones paying the carbon tax, if passed.

Federal report: Hawaii has even less time to prepare for the devastating effects of climate change

  ‘Scary’: Expansive UH study concludes threat to humanity from climate change ‘much larger’ than previously thought

Bitcoin may hasten global warming. Here’s how

  Hurricane Walaka practically wiped an island off the map

Refreshing trade winds making it feel more like Autumn

  Study: We’ve been measuring the impacts of sea level rise in Hawaii all wrong

  On Oahu’s North Shore, a summer of big swells and disappearing beaches

Beach erosion on the North Shore happens every year, but residents who have lived there for decades say it's never been so bad.

How hot is it outside? Try a heat index in Kahului in the triple digits

It hit 90 degrees mid-day Thursday at Kahului Airport.

Recovering sea turtle population to face challenges with climate change

While Hawaiian green sea turtles are a recovering, threatened species, scientists are still worried about the effects of climate change and sea level rise.

  Study: Plastic degrading in the oceans could be contributing to global warming

University of Hawaii researchers have discovered that plastics degrading in the environment may be even more harmful than once thought.

  Top lawmaker says rail should avoid Kakaako. The reason? Climate change

Concerns over rising sea levels are prompting one state lawmaker to push the Honolulu rail project to reconsider its current route through Kakaako.

Honolulu mayor says Oahu must prepare for 3-foot sea level rise by mid-century

Honolulu Mayor Kirk Caldwell is directing all city departments to address, minimize the risks from, and adapt to the impacts of climate change and sea level rise.

Study: One third of Hawaii’s coasts are moderately or highly vulnerable to rising seas

A study conducted by UH researchers have found that rising sea levels have left Hawaii islands vulnerable to intensified, high-energy wave environments.

Hawaii expected to see higher than normal tides this week

Starting Wednesday, Hawaii will see higher than normal tides, which could lead to minor coastal flooding.

Hawaii sets ambitious goal: Carbon neutral by 2045

Governor David Ige signed three bills Monday in an effort to reduce carbon emissions, one of which set a goal of making Hawaii a zero-emissions clean economy by 2045.

  As state prepares for hurricane season, past flood disasters offer glimpse of warmer future

Hurricane season officially begins Friday. Forecasters say the Central Pacific could see three to six tropical cyclones that would bring torrential rains, strong winds and severe flooding.

  Gaping sinkhole growing with each wave makes for dangerous situation in Haleiwa

Erosion is eating away at the infrastructure on another popular North Shore Beach.

  The water is rising. Is Hawaii’s largest public works project ready?

In 2025, the state's largest public works project will officially be fully operational: a 20-mile rail line with 21 stations under a price tag of $8.2 billion.

Amid worsening erosion, homeowners scramble to prep for big swell

Homeowners from Ehukai Beach to Rocky Point are scrambling to shore up their properties before a big swell rolls in Friday.

  Winter waves are eating away at Maui shorelines and putting oceanfront condos in danger

Winter waves are taking a toll on a shrinking West Maui shoreline.

  2018 to begin with rare New Year’s king tide

Just a few hours after Hawaii rings in the new year, the state will see a rare New Year's Day king tide.

  Maui community scrambles to save a cemetery washing away

The growing threat of coastal erosion is taking a toll on dozens of properties on Maui, including a cemetery at an historic site.

  2017 in review: How king tides became Hawaii’s climate change wake-up call

As we near the end of 2017, Hawaii News Now is taking a look back at the biggest stories that emerged over the course of a turbulent year for Hawaii.

  Authorities seek fixes to unprecedented erosion at Sunset Beach

Experts say the severe erosion taking place at Sunset Beach is reaching unprecedented levels, leaving city and state officials hustling to find both short term and long term solutions to address the rising sea levels.

  Hawaii study: Impacts of sea level rise already being felt — and it will only get worse

A new report is providing the first statewide assessment of the potential hazards and costly impacts to Hawaii's economy and shorelines with rising sea levels.

Erosion on Maui threatens temple, washes away gravestones

Rapidly increasing erosion on the Maui shoreline is threatening a cemetery temple building and has swept away close to one hundred gravestones.

  ‘Sand mattress’ central to new effort to save Waikiki beach

On Sunday, Honolulu Mayor Kirk Caldwell joined other environmental experts to announce a new effort aimed at addressing chronic erosion at Hawaii's most famous beach.

  Rising tides are eating away at private property along North Shore

Under what is known as Hawaii common law, a shoreline extends to what's called the high-water mark, that's where the wave washes up during high tide.

  ‘A mess’: Beachgoers, businesses seek solutions to Waikiki’s disappearing shoreline

Erosion along Waikiki is a perennial problem with no easy solution. But the community isn't giving up, even as the situation is getting worse.

Why were there so many rounds of king tides this summer? Blame ‘the blob’

Over the summer, several rounds of record-breaking high tides swallowed up stretches of Hawaii beaches and put flood-prone areas like Mapunapuna virtually under water.

  ‘Wicked, giant problem’: Is Hawaii ready for effects of climate change?

The same weekend large surf from Tropical Storm Fernanda swept across east shores, Hawaii also saw, for the third time this summer, another round of "king tides" that sent water washing up ashore, coming dangerously close to homes and making some roads virtually impassable.